Let's assume that ETH was telling the truth when he answered a reporter's question with the following words:
"On his performance on training we didn't select him," the manager said. "You have to reach the level every day at Manchester United. You can make choices in the front line, so in this game, he wasn't selected."
I'm just a caftard who lives 5,120 miles from Old Trafford so I can only assume that ETH was telling the truth, but what I see on the pitch on matchdays is a footballer who woefully underperforms relative to reasonable expectations. The two are likely connected, but we only know what we hear since we don't watch training sessions.
But the more important point is this: that a manager is under no professional or ethical obligation or share with the media and the 1 billion people around the world who support or at lease closely following United on the training habits of his players. ETH could have, and I believe, should have said something more like the following:
"The squad selection is mine alone to make and I don't need to explain to you or anyone else why any of my players are in or out of the squad on any given matchday."
ETH could still have been furious with Sancho over his poor training -- and quite truthfully, consistently poor performances in competitive matches since the day he arrived -- the prior week but not aired internal squad dirty laundry with the public, thus avoiding the debacle that has unfolded and continues to grow by the hour. Not one of us has a problem now, or three weeks ago, with ETH dropping Sancho in favor of Pellistri, a footballer who isn't as naturally gifted as Sancho but has put his head down and done the hard work to earn what at least I hope will be a start tomorrow against Brighton.
Candor isn't always prudent. Candor is often imprudent. Candor is sometimes catastrophic. It's pretty safe to say now that ETH's candor was imprudent, even if 99% of the responsibility for Sancho's poor performances lies with Sancho.