A. The defense has had huge drop off after Mel was out, but still is suffering why?
Mel Avg +22mn since return, only 16, despite scoring at an elite eFG 13-20, and his elite O-Reb and ability to turn those into scores at the rim, Fran only plays him 14 gm and vs IL 3-4 in 14mn. Remember the team on the floor wjen ia down 20-6? Mcacbre, ogles, gesell, marble, oly. (only 1 rebounder and 1 inside defender) Got to get him back up to +22mn as Sr and is elite defender and o-rebounder and transition finisher.
Oglesby. Avg +24 mins/gm, but can't rebound or play interior defense. Ogles HAS been on the court for most of this awful run of defensive games.
Uthoff. Played +16mins in 14 of 1st 19 GMs with double digit scoring in 14. But has less than 16mins in 8 of last 13. Including 4 of last 5, when the defense has collapsed, (or the entire 2nd half when he and Mel sat next to each unable to do what they did early in the BIG season.) he was 6th man of the yr candidate whe he was playing, now, can't even get into the game.
Gesell. Is now a shooter. Double digit shooter 3x in 1st 12 BIG games, but now, 5 of last 6, with terrible results. 22-67 and 5-23 from 3. Mike is taking shots Mel and Jarrod used to take.
Confidence. macabre, uthoff, and Mel get benched and their confidence is showing, these guys are all playing less, and playing worse than earlier in the yr.
Since Mel's illness; guys like mike, and Josh have stepped up the shots taken, their eFG% isn't like others, ogles defense isnt nearly what uthoff or Mel bring to the overall game. Get ball to Whitey, uthoff, and Mel. Thaws are the 3 elite eFG % guys on the team. Ogles and Mike, shoot less, get ball to these 3.
Fran. Please decide to go with a rotation that makes sense.
So I agree with Windsor and laid out this case right after the Illinois game.
Mel got sick, Gesell and Oglesby started shooting (last few games poorly, Gesell 22-77, Oglesby 8-27), 0-16 last night. Now add 'The Shooting Subs' mccabres 3-7 11 mins and Joks 0-2 in 5 mins ( 3-9 in 16 mins). These are the teams poorest eFG% shooters and they are taking the most shots. 3-25.
Uthoff, whitey,and Mel go 7-10, and are IOWAs best eFG% but they can't get shots. Several of these FGA were the result of O-Rebs, (2nd chance points, not assisted, and drew fouls and FT).
Rebounding. During IOWAs dominant run to #10, rebound margin hovered in the top 10 nationally and #1 in BIG. Since Mels Sickness, IOWA has been out rebounded in each game. Fran has responded by 'downsizing' or reducing Basabe and Uthoff's mins, in favor of 3 guard configurations resultingin more mins for Oglesby, Jok, and small line ups. You can run when you get ALl the rebounds and get easy transition boards, but DRM gets 0, Olgesby, Jok, and Gesell combine for 2-3, and NW pounds for many o-boards.
FTs. The outside perimeter team shoots 3s but, outside of marble, doesn't get to the FT line. Iowa used to make more than others would attempt. Well that has leveled off now too.
In summary, there may or may nit be 'chemistry' issues, but there is clear quantitative differences in who is Now playing, who is now shooting, team rebounding and transition offense and fewer FT attempted. Those are not 'chemistry' those are player rotation dependent and specific player combination packages, and those are on Fran.
This is attempt to answer your question from a qualitative perspective
(and is re-posted from another thread, apologies)