I don't know if I'd rank his performance at #2:
Watson: 20/25, 247 yds, 1 TD, 0 INT, 14/55 rush (1 TD), 1 Fumble/0 lost
Cousins: 19/31, 242 yds, 1 TD, 0 INT, 2/-1 rush
Brees: 26/33, 208 yds, 1 TD, 1 INT, 1/5 rush, 1 Fumble/1 lost
Allen: 24/46, 264 yds, 0 TD, 0 INT, 9/92 rush, 1/16 rec yds (1 TD), 2 Fumbles/1 lost
Brady: 20/37, 209 yds, 0 TD, 1 INT
Tannehill: 8/15, 72 yds, 1 TD, 1 INT, 4/11 rush, 2 Fumbles/0 lost
Stats aren't everything, but reading the above I'd say he was behind Watson and Cousins, and on par with Brees.