Vince's plan to make Lesnar hated, by doing the whole "He doesn't give a fuck because he's going back to UFC" thing, might be working now, but it's still not going to help at all to make the crowd like Reigns. I don't understand why Vince would even think that.
I'm no Lashley mark, but let him have the match against Brock and win the belt. Then have Roman go heel and get Heyman as his manager. Use that nuclear heat in a good way already.