If you notice, I said he left football meaning that he played football.
There is basically no similarity between him and Brady Quinn. Drew Henson COMPLETELY left football for several years. He NEVER practiced football with a team for several years.
If Brady Quinn is going to be compared to any highly rated QB lately it would be Philip Rivers. He was a highly rated QB and competed for the starting job in training camp. He lost out to Drew Brees who had an all star season.
Both were highly rated QB. Both lost to the veteran QB on the team. Going into their second season there was still a QB controversy.
I just don't see how Drew Henson can be compared to Brady Quinn in any way.