If they aren't serious, why are they playing Tatum 45 minutes?
Maybe "stretching him out" so he is ready for the longer minutes in the playoffs? This is something that Moranis suggested in another thread. I thought it was an interesting question. Should you play the keys guys less leading up to the playoffs (rest) or start playing them more so they get used to it (stretch them out so to speak).
I think the general practice is more to rest them but thought it was an interesting question.
As to the game, it was a major disappointment. It always feels like a gut punch when they lose like this (which fortunately isn't all that often). But it was a road game on a Thursday, I am not concerned. I feel the big picture is still really favorable for the team.