I'm not sure I buy this... it seems like everyone buys into the narrative that the bad defense is Baldelli's fault because pre-game warmups are now optional, but before, when our fielding was bad, it was just because the players were bad? For example, the Twins had a few bad fielding clubs under Paul Molitor (2016, 2018), but wasn't Molly doing the right thing by making practice mandatory? I don't see how it's the manager's fault if the players just aren't good at fielding. I'll give you this - some players have been extra sloppy recently (Schoop, Rosario come to mind) so you could potentially put that on Baldelli, but Sano has been a straight-up butcher at 3B since coming off the IL. He's always been shaky on defense so I don't think more practice is going to make a difference.