For example let's go to the last week Losman played last year.
JP was 10-27 183 yards 1 TD, and 3 INT's. Brooks was 27/49 with a TD.
Different story there.
Pretty easy to take a snapshot in time to make your call.
And while I didn't see the game, Brooks was 6-14, 68 yards, and got sacked a lot.
Jp had a few more throws, a few more completions and yards, but overall they both lost, and neither threw an INT. But JP fumbled a few times. Say what you want and Brooks is probably a bad Qb but he's still better.