I just posted this in another thread, but the areas where we haven't improved in recruiting in this class are O-line and LB. We have players, but most appear to be the Kill/Claeys type projects.
At LB we have 3 commits (Rush, Sori-Marin, and Aune), all lightly recruited without another power 5 offer between them. On the O-line, Austin Beier is a really nice recruit, but Norton, York and Boe had little to no P5 offers/interest and seem like a stretch. If you look at the 247 rankings, our 4 lowest rated recruits are either O-lineman or LBs and 6 of the lowest 7 fall into this category.
Overall, Fleck has made significant improvements in talent at QB, RB, WR, DL, and CB. Unfortunately it seems he might have been a little too eager to wrap up O-line and LB recruiting and settled for a few guys...