Well every team has areas where they are relatively weak. The question was whether Wren should have done more, whether it be for starting pitching depth or other possible weaknesses.
My view is that you want to be cautious about addressing all potential weaknesses before the season starts, especially if there are some plausible internal solutions. I'd rather keep some budget in reserve to see which areas are the greatest need come June. Now a team like the Dodgers can do more addressing potential weaknesses before the season starts. They picked up Maholm and another Cuban player who can play second to shore up potential weaknesses. Our approach has to be different.
As far as starting pitching goes, I think our depth going into the season was satisfactory. You want 8 decent starters because the eighth starter on average makes ten starts in the majors. Some teams use nine, ten or more starters to get through the season. But on average the ninth or tenth guy is just making a spot start here and there. For example, our ninth and tenth starters last year were Hale (2 starts) and Loe (1 start). We came into spring training with a top 8 of Medlen, Minor, Beachy, Teheran, Wood, Floyd, Hale and Garcia. To me that was good enough. We also have some others ticketed for AAA--Thomas, Martin, Maya, Schlosser--who could potentially step up. So I don't think starting pitching was an area where our depth was a significant issue. Of course, if Medlen is out for the season that changes things quite a bit. We have to see how that turns out.