Right.
““The Broncos were 1–4 before he became the starter, but began winning with him on the field, often coming from behind late in the fourth quarter, until they won their first AFC West title and first playoff game since 2005,”
I guess all those games he helped them win were just flukes. Obviously there were plenty of starting quarterbacks who couldn’t do that for their teams that year.
Look at many of his wins and it's pretty clear that the defense won those for him. When they were on, they were a steel curtain. When they were not, it was a blowout. In five of his seven wins the Broncos scored less than 19 points. In his last three regular season games, all losses, Tebow was a combined 30 for 73 with four interceptions, ten sacks, and one touchdown. Tebow led the league in delay of game penalties. Tebow might be able to win on the occasions when his support helps him overcome his defects. But he can't manufacture wins. Four teams, count 'em four teams, have given Tebow a look. All four have decided that he's not capable of playing at the pro level.