One question I've been thinking of, for TFF mainly but anyone I guess.
In the player filters. Say I'm looking for a STC DLF - So I go to scouting and load up the DLF preset filters. There I see Gary Hooper is on there. Not the best player, but going by TFF's filters, he's "right for the job". But (season 2 Dortmund) Wayne Rooney isn't, nor Ibrahimovic.
So does that mean that Garry Hooper will perform better at DLF in this tactic than Rooney will?
Same goes for all positions as well. Like if I don't see one of my current players on the filters should I sell him and buy one from that list?
Zlatan Ibrahimovic manages get into the DLF filter with his default attributes that he has in the 1st season but he is 33 years old and it means that he's on great decline, you said that you were in the 2nd season in your save so probably his attributes declined greatly in your save and it prevented him of getting into the DLF filter.
If you take the 1st season Wayne Rooney (CA = 155) is very good as DLF and he is better than Gary Hooper (128 = CA), it easily can be seen by comparing them:
Wayne Rooney has almost all important attributes that are important DLF higher than Gary Hooper, expect, First Touch and it is the reason why he didn't managed to get into the DLF filter, his First Touch is only "11" and it's 2 points away from the minimal level that First Touch has in the DLF filter.
Yes, such situation might happen and some really good players might miss the filters only because they are missing only one attribute, for example, Olivier Giroud, also, didn’t manage to get into the DLF filter only because his was missing Agility that isn't so important attribute for DLF but his other attributes are excellent for DLF.
In order to avoid situation when the filters are missing such players as Wayne Rooney and Oliver Giroud you can reduce the "Match Condition" by 1 condition and see what players were out of the list and why, if you see that some very good players were missing only because 1 attribute that isn't such important and they are missing it only just by few points then you can also consider these players as candidates for the position.
P.S. Please notice that at the start of the 1st season Wayne Rooney is 29 years old and Olivier Giroud is 28 years so they both are on decline and every next season aftert the 1st season their attributes will be declining further.