Wilson: 186/298 (62.4%) for 2024 yards; 6.79 ypa; 13 TD, 10 INT; 20 sacks; 127.2 rating; 54.1 raw QBR, 61.6 adj QBR
Mangum: 242/390 (62.1%) for 3062 yards; 7.85 ypa; 21 TD, 7 INT; 26 sacks; 142.2 rating; 62.4 raw QBR, 66.1 adj QBR
To be fair, you gotta account for Wilson's rushing stats:
Wilson: 126 attempts, 466 yards; 3.7 ypa; 6 TD
Mangum: 52, -99 yards; -1.9 ypa; 1 TD
Is it arguable that Mangum had a better year as a freshman than Wilson did as a senior? Mangum also did not have the benefit of Booker in the backfield with him.