Considering how most predict the careers of Ambrose and Rollins to go, I'd say their size isn't an issue. No one really thinks Ambrose or Rollins are gonna be flexing their muscles for the crowd like Hulk Hogan after every match. Dean Ambrose is seen by most as more of a crazed mad man on the mic and in character (I'm sure he'll become more of this once The Shield ends.) I've always likened him to a Brian Pillman or the heel Jake Roberts (1991-1992) and a little bit of Roddy Piper. Ambrose is about as big as Piper was when Piper was drawing nuclear heat through his feud with Hulk Hogan in 1985. You know, the big match on the MTV aired special The War To Settle The Score (which had several respected musicians on-screen talking about how they felt the match would go), which was a lead in to the very first Wrestlemania main event. Seth Rollins I picture as more of a sympathetic baby face similar to Shawn Michaels, specifically the 1995-1996 HBK.