Yeah, the problem is really just that you're too light on power with Bonifacio and Bartlett. You have Pujols whose a lock for 30+ and Quentin, Kemp, and Jones, where you could get significant power, but getting less 5-8 homers at most from 3B and SS probably won't cut it. The good news is at least one of Drew or Beltre should significantly help you there sooner or later, giving you at least an average power bat for one or both of those positions. You'll have lots of options to match up your power and speed based guys. Do a little homework and put the right guys in the right situations and you'll be more than fine. Wieters should be gravy. There's little doubt he'll hit, but putting a HR total on him is difficult.
You'll also almost certainly have a surplus of pitching eventually. Good closers, and then having Santana and Price stashed is going to be a nice luxury in a month or two.