Should we put that in the job description?
I think Johnson did a fair job of getting good performances out of the talent he had (the starters and Fox anyway) but he was at least a good player or two short as usual. I think this excerpt from a Big Ten Basketball power ranking published 8 days ago says it all:
It's been tough sledding for the Golden Gophers down the stretch. Minnesota has lost four of its last five games, losing three of those contests by double digits. Minnesota is a much-improved team from a season ago, but it still lacks the necessary depth to get through a grueling Big Ten season.
The teams we played at the end of the conference season knew that and threw 10 guys at us to wear us down and keep their best players fresher.
I think Johnson needs to understand that if he thinks he has 9 capable Big Ten caliber players, he really only has 7 and, if one of them is hurt or has other issues, he only has 6. So, he must recruit (at least from the portal) doggedly until he has 11 players who fit that description (at least for 10-20 minutes per game). Do that and maybe he'll end up with 8 or 9 good ones.
As far as the importance of coaching, I certainly don't dismiss it but a coach, boss, teacher, etc. will always look better if their subordinates are better. One of my favorite quotes on coaching was given by the venerable Dean Smith while reflecting back on his career with his characteristic modesty:
"I'd call a timeout and diagram a play. Now, whether the ball went in the basket or not, well, that's where recruiting came in."