I think some teams probably did win w/ Tebow. Here's his gamelog from last year: http://www.pro-football-reference.com/p ... 0/gamelog/
Note the playoffs weeks:
14: 138 pass yds., 78 rush yds., 2 TDs (1 pass/1 rush), no turnovers
15: 308 pass yds., 27 rush yds., 2 TDs (1 pass/1 rush), 1 INT
16: 205 pass yds., 94 rush yds., 3 TDs (2 pass/1 rush), 2 INTs
Granted, nobody would have been in the playoffs if they had Tebow as their QB all year, but he was a great playoff pickup for many teams and I am sure some of them won their league. You could win a playoff game with any of those lines from your QB, with the week 16 one, it would actually have been tough to lose with an otherwise playoff-caliber team. Week 14 was the worst of the three, but it still was decent, and I'm guessing only a very gutsy or very desperate person would have started him in a playoff game then. Bear in mind that almost all scoring systems count rushing yards substantially higher than passing, and many count rushing TDs higher as well (this is relevant for Cam too).