He couldn't possibly be looking to acquire anyone to delay their prospects' timelines? Singer has an ERA over 5 in 7 starts since being promoted to AA, Kowar has made 4 AA starts, and Lynch and Bubic are still in A+. Glenn Sparkman (yes, who???) is in their rotation right now, and their AAA rotation consists of great prospects like Eric Skoglund (6.51 ERA) and Foster Griffin (7.38 ERA). Jake Kalish may be their best Pitcher currently in Omaha.
Montgomery certainly isn't good, but he'll serve the same purpose Harang and others did when we were rebuilding - you run him out there and hope he gives you enough innings that he keeps you from rushing the prospects.