RTC: Why didn't Case Keenum get drafted?

Reading the coverage of the Houston Texans...

One thing dominated yesterday's news.

Case Keenum... by Kristie Rieken of the Associated Press.

Case Keenum... by Chris Baldwin of Houston Culture Map, Keenum's biggest cheerleader all this time. Though I think during the preseason he only advocated Keenum as the backup over T.J. Yates, not as the starter.

Case Keenum... by Dale Robertson of the Houston Chronicle.

Case Keenum... through the eyes of June Jones, by John McClain of the Houston Chronicle.

Why Case Keenum didn't get drafted, by Dane Brugler of CBSSports.com.

T.J. Yates' reaction to Case Keenum, by CSNHouston.com's Dave Zangaro.

Oh, and J.J Watt, who NFL.com's Around the League blog ranked as the NFL's best defensive end.