I think it goes against some basic boxing techniques in regards to stance and stepping into your punches. Every time Vince set to throw he got cracked in the lead leg. I think this is why many people think of the MMA striking as sloppy b/c lots of the fights keep a much wider stance and use more looping punches. The end result is Vince should have rushed him and got him on the ropes or learn a few kicks him self.