the difference beween KF and FM are huge, KF is to conservative and lets teams stay close, that have no business being close, KF reluctance to substitute players is also a glaring weakness and as you point out he has a roster of 85 players, we have i believe 7 RB but plays one, FM has 11 scholarship players at present with one injured, but does have 4-5 walk-ons, in the games we have and will see he will play the majority of his Scholarship players and 2-3 of the walk-ons, and plays uptempo and i highly doubt that you will see a inferior team be within 40 pts,
sorry to say the game of football is changing and KF is not changing with it
also in away you can compare the 2, the Center is like the O-L & D-L and has to play both, the PF can be compared to the TE and a MLB on defense, he SF is like the WR & OLB, the SG can be compared to the RB & DB'S, and the PT guard is the QB of the team
this might be a bit of a reach, but i think is a good way of comparing the two
in basketball the players have to play both defense and offense, very rarely will you see FB players doing this