I think Brooks Lee's future is reserve infielder 2B, SS, 3B. He doesn't hit well enough or field well enough to start. That doesn't mean he can't have a meaningful MLB career as a quality reserve infielder. Yes he was a high draft pick, doesn't mean he should have been.
I've got no problem with Tristan Gray getting some time at shortstop right now. Yes he's 30 years old but he's never really been given a chance to hit in the majors. He's got 2 fairly recent 30-homer seasons at AAA and the Twins sure could use some offense. He might be stretched some defensively, but which Twin isn't these days.