Another weird case here because, on the surface, it seems like Michael Busch SHOULDN'T be blocked from a major league call-up. Miguel Vargas hasn't exactly put a stranglehold on the second base job. Also, Busch can flat-out rake, as he hit 32 home runs last year and has a .967 OPS through 21 games at Triple-A this season. So what is the hold up?
The problem is his defense or lack thereof. While the reports are that Busch has worked hard to be a better defender, you will struggle to find anyone that thinks he can be an adequate infield defender in the big leagues at second or third base.
If the Dodgers didn't pull the trigger and promote Busch immediately after Gavin Lux got hurt, then one has to wonder if they ever will find a role for him on a fully-healthy club. The Dodgers don't have a shortage of guys who can DH, but there are other teams that are not quite as flush with offensive talent, and trading Busch to one of them seems like something the team should consider if he doesn't have a path to playing every day with them.