They could, though I'm not sure if they're capable of pulling that off. There's an interesting story there somewhere though.
Wouldn't it make more sense to build for a future showdown, started by the exchange they had at the end of RAW last week? ldeally, Reigns vs Lesnar 2, whenever it occurs, should take into consideration the 'growth' that Roman Reigns has obviously had since their Mania meeting.