I'm curious what role you have Larnach playing on the bench? It seems to me he would do well to rake for a while in a full time role at AAA, and be ready when an injury comes along. I do still think another outfielder is brought in, probably a right handed hitter.
Also, the bullpen will be interesting to see how it plays out. I know you have Alcala in there, but Staumont and Funderburk, and possibly Canterino among others, would seem to have a place depending on how it shakes out. That said, I can totally see a revolving door between the bullpen and St. Paul for a lot of the season once again.
I still expect a different playoff level starter to be added, but maybe that's in season? We'll see.