Are the Pats taking on too much?

Bill Belichick's organizational multi-tasking may be spreading his personnel too thin. This year the Patriots have Nick Caserio (a front office person) also coaching the DB's and now a unseasoned Quarterback's coach working with the Head coach on calling offensive plays! Why can't the Patriots hire a designated Offensive Coordinator or Defensive Backs coach?? I know they didn't believe in giving former Coordinators Charlie Weiss and Romeo Crennel pay raises but are the Patriots this cheap or is Belichick this much of a control freak?

Either way, it may be catch-up with him and the Patriot's are suffering because of it.