Something general,
for which your vidadi.tairov post is a good suggestion. But also this may explains sammy_rogers ' question regarding the 1st topic of his (very helpful) post.
national-football-team (NFT) was launched in 2004 and since around 2008 decided to do match reports. Which was a great idea and is giving the website so much more information regarding the collected yearly stats we had before without any link to the actual played matches. While having the current matches since then, the webmaster's Benjamin approach is to do the history year-by-year from 2008 backwards. At the moment we are working on 1980. In the beginnings there had been a time also the early historic years from 1872 forward had been filled with match reports. At the moment we are standing at 1923, though the priority should now be working on the 1980 side downwards the 1970s as we still have contemporary witnesses still alive. Meaning for users that match data between 1923 and 1980 is still missing. Though there are certain matches from that time periode already online if an user with database access has taken care about these. That's why Euro final tournaments or some World Cup final tournaments had been online since long. Personally, my focus is on current players and not so much on history, though it's still fun. So, whenever reviewing a certain country I did add several of their historic matches to the NFT system even beyond the year-by-year approach. For several countries doing more historic matches is a real start from Zero sometimes, especially for the countries without prepared squads, when (nearly) every player has to be created, leading to clubs to be created and at the end tracking the yearly club pages farer back to the past. I think Vidadi's suggestion of concentrating on major tournament will help to create at least the most important players. Doing competitive games (WCs, continental qualifiers) first, will also help to determinate the strengths of players used in friendlies, especially whether to decide or not if a friendly should be non-FIFA or left out at all. On the other side, it is easier to get information about more present games like the late 1970s, than early 1960s. That effects especially qualifiers, from which we are not even sure about the year from some 1960s games. So, it may be better to wait until local historicans have worked out something more reliable than we have at the moment. As I don't want to get this post too long, I just start with what we have and what could be a target for the future:
WORLD CUP
to me THE competition for national teams. There is no other competition like this and clearly above the 6 continental competitions. That's why the last two years I uploaded also all the qualifiers from 1934 to 1978. What we now miss are the matches of the 1982 WCq played in 1980 from the smaller nations, who haven't been yet done by the year-by-year approach. I think we can be hopeful that until the start of the (centennary) 2030 World Cup qualifying these matches will be online to get finally complete World Cup records.
Also I want to mention that I did put online the 1928 and 1924 Olympics as the World Cup predecessor, so we have all Olympics before the introduction of the "real" World Cup, even the two editions after 1923, the year NFT stucked with the historic data.
Oceania Cup
The youngest confederation. I put also here the 1973 final tournament online, so NFT is complete with the Oceanian Cup history.
Asian Cup
Something I worked on recently. The 1980 final tournament is nearly done, still waiting one or two more matches from the smallest countries not yet done by the 1980 year-by-year-approach. I took a bit more care about the past editions. For 1972 and 1976 I put online at least the final match, while the first 4 editions had no final match but round-robin groups. So, I put online the final tournaments from 1956 to 1968 as a whole. Noticing that for 1968 it even gets difficult to find match reports for the final tournament. For qualifiers it will be even trickier. Did the 1956 qualifiers with a few missing info'. I think a few qualifiers will get tough to get sources. So, I may will online work on qualifiers when reviewing a certain country. What may could be done are the 1972 and 1976 final tournaments (even if some match reports will be tricky too), so that at the start of the next final tournament in january we have at least the history of the final tournament. 1980 year-by-year approach should be succeed to have finish the 1980 edition as well until january.
Euro
Euro final tournaments as well as the first (1960) edition's entire qualifying had been in the NFT system since long. What I did recently, was to add all historic quarter-finals which had been part of the qualifying before 1980, and I also did the entire qualifying for the 1964 edition which was completely in a knock-out phase. Between 1968 and 1980 it had been played in a group stage which much more matches. 95% of the european squads are prepared. When doing 1964 I just had newly created players for Iceland. So besides having the match reports (which other sites have already as well) there won't be too much new info'. Maybe a task for beginners, should NFT get new people working on the database.
Africa Cup
to me the most interesting as I reviewed several african countries the last 3-4 years. I put online all the final tournaments during that time, and also worked much on qualifiers. Though sources are difficult here. And for many games we can be glad to even get scorers or the correct year in the match date. Maybe it's better to wait with the remaining qualifiers, or maybe I start a test project opening a thread we can discuss on the African Cup qualifiers. Or just set the matches. Experienced showed, it goes easier the more NFT have. That's why I did create tournament trees for all the editions these mentioned competitions were played. If we have the tournament, then it's easier to just create the matches, and if we have the matches it's easier to fill them up with match info'. So, let's see where this is going in Africa.
Copa América
the most historic competition, and the competition we miss most info'. We had a guy working a bit on Uruguay, but besides that all the tournaments from 1924 to 1979 are nearly empty. Match reports should be available easily, but squads are prepared differently. While we have Brazil prepared from 1930 and Argentina from 1935, Venezuela isn't prepared at all, so plenty of new players have to be created, which on the other site makes it interesting.
I have taken a closer look on South America before getting the NFT database access, so, I won't take a look at that region again in the near future. While I labeled Euro data for beginner, filling up Copa América could be the advanced beginners class.
Gold Cup
is all online being newly formed. Interesting is its predecessor
CONCACAF championship
and before the merger into CONCACAF we had
CCCF championship & NAFC championship
though the North Americans just played a single edition.
To me, that's an interesting region as besides the USA and most of Mexico not much is prepared. Something I noticed when doing historic WCq. On the other hand, good sources are starting to pop-up, which leads into having the match reports, at least for the final tournaments with many players to newly create. After setting the tournament years, it was a pleasure to see that the 1946 tournament has been already filled. At the end, it's a hobby for all of us, and everybody should work in the fields he is most interested in. With a few more people actually working on historic data we could progress a little bit faster. In the Euro, Copa América and CONCACAF/CCCF we have much space for improvement. Oceania Cup is done. While Africa Cup and Asian Cup will get interesting.