Highly doubt they'll combine for 52 in the second half. Memphis has the better defense, but there are adjustments that must be made. I have no idea why they're putting Jackson Dillon in coverage with his blitzing abilities.
Even if they wouldn't be in the middle of the field, I don't get why they're not in the press box. They work off monitors a lot of the time anyway and that low angle they've got is awful.
Offensively, what Memphis is doing is fine. Only one or two drives where BYU has really slowed them down, and one of those was due to a questionable false start call.
They've got a good defense (17 PPG during the season), this happens sometimes after a long layoff. I'd say it'll be a tighter performance in the second half.