Just glancing over some stats, here is an odd one:
Iowa has just 11 TFL this year, some teams get 11 in one game. 2 each vs MiaOh, ISU, Rutgers and 5 vs MTSU. That is good enough for 130th in the country 2.75 per game, just behind UTEP.
Doesn't necessarily mean much, Georgia was in the bottom 20% of the nation in TFL with just 4.6 pg '18. And Michigan '19 (as expected) is not good at getting tkls for loss (4 per game).
Just kinda jumped out to me to see Iowa last.
Other stats of note:
3 best TFL teams in the nation are from the B1G - ILL 11.5, OSU 10.4, PSU 9.75
4 best Scoring Ds in the nation are from the B1G - Wisconsin 7.3, PSU 7.5, Iowa 8..5, OSU 8.6