Rosenthal isn't getting stretched out this year.
I just don't see the need to add too much to a bullpen that can throw Rosenthal, Mujica, Siegrist, and by playoff time either Lyons or Martinez. Scroate is an acceptable L00GY, far better than Arthur Rhodes, but this pen is better simply by jettisoning Boggs, Salas, and Scrabble.
A great shot is when you pull it off. A smart shot is when you don't have the guts to try.