This is probably an acceptable solution if they get a short term, good fielding and good hitting LF. But there are so many good CF options out there this offseason so it would cost less to pick one of them up.
would it? You're going to be giving significant money to your first baseman next year unless you let both LaRoche and Morse somehow and give the job to Moore. I'm not convinced any of the CF options out there are better than Harper and Moore is at worst similar to what we got from Morse. If it's a financial decision, that's the way to go. Moore seems to be at the very least a good hitting LF and an adequate fielding LF.