The rotation is fine as long as Liriano isn't significantly hurt. However, it seems possible that acquiring a starting pitcher might not take a ton because so many are becoming available, so that could prove interesting. I'd much rather go for a big impact pitcher than a solid guy, because both Morton and Locke are well capable of solid pitching and already here. And I'm not sure either one profiles well as the long-man in the bullpen, although Morton had a brief stint a few years ago where he was almost unhittable.
Given the injuries and the perennial consistency problems, I think the focus has to be on a bat. I like the idea of targeting Revere as a 4th OF, although things become complicated if the evaluation of Polanco is that we need a replacement or platoon, because Revere wouldn't be good in that role. But he's great as a 4th option and pinch runner.
Mainly I'm just dreaming of the most improbable trade of them all for Tulo. This deadline seems even more wild west than normal... I have no idea what kind of deals are going to happen, other than a solid handful of guys who definitely seem like they will be traded (to one of five or more teams...).