The signings of Harang and Arroyo are not "evidence of a plan." They're two smart moves that a good GM should make. He made them, and I applaud him for it. Now he needs to start filling holes.
The plan is clear -- invest in pitching. Defense -- signing Gonzalez, asking Griffey to consider a move to a corner spot., etc., is also clearly a priority, as Krivsky has said it would be. For me, that's sufficient evidence of a plan at work. For those who seem to be saying a plan constitutes being able to strengthen your team in the optimal manner in every area of possible weakness in a single year (i.e, let's get a Detroit-style bullpen tout de suite, thanks, or let's get us a #3 starter chop chop), I'd say there's no GM who can have that kind of plan and accomplish it. If there is such a GM, who is it?