1. He returned when he was previously scheduled to return, not early. He should have been on an airplane within hours of the boycott being announced. He wasn't in Timbuktu. There are flights from San Diego several times a day, not to mention John Wayne, Long Beach, LAX, etc.
2. He met with the players after the report had been leaked and they had already announced they'd give up the boycott. This was roughly two days after the boycott started. That is inexcusable.
3. Reread all the headlines from the papers and/or ask non-fans what the boycott was about. Only real fans understand the nuances behind it. Most people felt they were excusing assault, saying football was more important than the woman's trauma. I can't believe Claeys didn't realize how it was being viewed, but maybe he was too close to the situation. He did admit his tweet wasn't good, but I don't think he completely gets it by his qualifying statements.
Control as I mean it is more institutionally, not relative to how players play. It's managing public perception, ensuring team rules are being followed, when team rules are broken being consistent with punishments, etc. While I also don't think the investigation was done very fairly, how could a coach justify not suspending players that a University review board had recommended suspension and/or expulsion from the University (not just the team)? What leg does he have to stand on? And again, the fact he still doesn't get the University was legally bound to investigate is beyond me. He still believes the investigation wasn't in the University's purview. After all this time he still doesn't get they legally had to do it.
That does not sound like a Power 5 head coach to me.