Why was he "counting on those players?" Bad things happen all the time. Lets go through the list of some Gopher front court men during the Pitino era:
Gaston - simply could not play
Bakary - you didn't want him playing more than 10 minutes a game if you could help it
Josh Martin - quit the team and transferred after a few games
Reggie Lynch - big impact player but suspended and never played again
Eric Curry - injured; lost substantial time and never regained what he lost
Michael Hurt - couldn't play at this level
Davonte Fitzgerald - injured and lost a full year after a sit-out transfer year; not so good when he played; for all practical purposes, a bust
Jarvis Omersa - nuff' said
Liam Robbins - quality big man; unfortunately he played only 23 games before being injured and transferred afterward. He still hasn't played at his new school and probably wouldn't have played yet if he remained here.
I REPEAT: BAD THINGS HAPPEN ALL THE TIME! YOU ALWAYS NEED INSURANCE PLAYERS. ANY COACH WHO DOESN'T INCORPORATE THAT SENSE OF PESSIMISM IN HIS THINKING IS A FOOL.
We had two freshman commits when Ben Johnson was hired. One of them stayed and another did not. So far it looks like the wrong one stayed. Pohto is averaging 17.3 minutes a game, 7.2 points per game, 3.5 rebounds a game, a player efficiency rating of 19.7, and a win shares per 40 minutes number of .175. These numbers are pretty darn good for a freshman big man. It's still early but Pohto clearly looks like he can play at this level. If Johnson didn't try to convince him to stay, he looks like a fool right now. Treyton Thompson has played a grand total of 5 minutes so far. Of course, he is from Minnesota and that matters more than player quality to some people who post on this board.
There were still some serviceable transfer big men available when our two front court players were injured in the summer. They didn't all go to high level programs. Instead we got an undersized guy from a D2 school who looks like he's only good for breather minutes and taking some fouls away from our other two big men.