Then by logic it was a mistake to make him the HC in the first place.
It was a mistake to make Claeys Head Coach in the first place. In retrospect, it took a really unusual sequence of events for Claeys to get the job.
1. Kill was supposed to be head coach. If it weren't for his initial health problems, Claeys never would have coached an interim game as head coach.
2. Kill has issues, so Claeys (by Kill's choice it seems) becomes interim head coach until Kill comes back.
3. Kill returns coaching. We have a AD change due to unusual circumstances giving us an interim AD.
4. Kill retires. Normally if this would happen, the AD would have some foresight for a transition plan, but this happens right in the middle of the year. During any other mid-season coaching change, the person taking over is usually a former head coach if available, or someone the Athletic Dept would deem someone that is "their" choice. Instead, the resort back to the "interim plan" that was used before.
5. Claeys wraps up season with AD still open so a stop-gap plan is chosen.
6. Claeys, at his own fault, doesn't line up an agent to ensure a 3-4 year deal. This is probably the most uncommon scenario out of these unusual sequences of events that lead to Claeys getting this stop-gap job.
7. Interim AD and Claeys agree on a low-end deal with easy buyout.
8. Minnesota finally hires an AD with balls. Not just a do-good-er, go with the flow, don't shake the apple cart, type AD. (Maturi would have kept Claeys) but new AD is found who wants his own guy (for better or for worse). That led to Claeys not coming back.
So it took 7 or 8 incredibly unusual events in sequence with unusual choices, just for Claeys to get to be a head coach as long as he was. Each step more unusual than the one before it.
If the question is who is the better recruiter, Fleck or Claeys, I think you have to answer that for yourself, but to me it's not close that Fleck has more upside as a recruiter.