As most of these slides are, this one is highly debatable. Nonetheless, this is my feeling on the matter.
After watching the Cena-Lesnar bout on several occasions since their encounter, part of me doesn't want to see Lesnar in another WWE ring unless he's willing to go back to wrestling. Not his mixed martial arts work, his former wrestling ability.
When Lesnar first stepped into the ring again, he wore his MMA shorts and gloves, showing that he would be doing no wrestling. He showed that he was ready to fight and planned to do so with the skills he had learned while a member of the UFC.
Throughout the match, Lesnar used some highly physical moves, most of which appeared to have huge potential for injury to Cena. Using his kimura lock and powerful knees to the ribs, Lesnar put Cena in harm's way with each and every move.
This goes to show that Brock was still in the MMA mindset as opposed to a wrestling mindset. While highly entertaining in an Extreme Rules match, unless his match against Triple H has the same sort of stipulations attached, Lesnar needs to come back to reality a bit.
Triple H may be a brawler-type wrestler, but he's not, nor has he ever been, a mixed martial arts expert. Unlike Lesnar—right now, anyway—Triple H has made a career out of great wrestling matches. Some of them have been brutal, but now is not the time for him to engage in another sort of match against Lesnar.
Lesnar and Triple H could engage is a great wrestling match, but part of me can't help but think it would be more physical and brutal than technical. If the match has to happen, make it a wrestling match and make Brock prove he has the ability to protect his opponents in combat rather than going for the kill.
These are a few things the WWE does not need to take part in. Putting their competitors in harm's way, especially with all the injuries already occurring, is not something WWE brass should be doing right now.
WWE is not UFC, nor should it be treated as if it were.