I hope Mallett and Clowney both have a good game Sunday.
Texans site has a good write-up on midseason QBs-
http://www.houstontexans.com/news/ar...d-25230b2f185b
Mallett will be 10th starting QB for Texans over the years. And 12th QB change by a team this year across NFL.
And coincidentally, Drew Bledsoe was replaced by both Tom Brady in 2001 and Tony room in 2006.