After running a baseballmonster.com analysis on your league settings, I would say you can safely drop Boesch IMO. Higher upside with Morales and I believe LAA have to start turning the bats around as a team soon (Hunter's starting up, it's just a matter of time before the team overall gets there). Same could be said for Detroit, I suppose, but I think LAA has a little better offense potential and it'll come around soon.
You did miss out on Bass unfortuantely. Hochevar is droppable. I'd run an analysys over at baseballmonster and compare it to available players. Also, there's no hard in plugging players in short-term (like a Pedro Strop) rather than holding a guy like Hochevar. Your league settings (i.e. the categories used and the size of only 12 teams) allows for some flexibility there, so work the WW actively if you need to.