According to the Chronic:
Gray is a bit surprising. Look for more cuts before training camp starts to get down to the 80 man roster.The Texans placed quarterback Quinn Gray and offensive tackle Jordan Black on waivers today.
Before the Texans had their last OTA (organized team activities), Gray and Black were given their pink slips. Black came to Houston as an unrestricted free agent from Kansas City. He never fit in with what the Texans were doing up front and ended the season as the fourth tackle.
Gray, who played so well for Jacksonville in a loss to the Texans at Reliant Stadium last season, had signed a one-year deal as the third quarterback behind Matt Schaub and Sage Rosenfels.
Gray didn't adjust well to the Texans system so they released him.
Veteran Shane Boyd and rookie Alex Brink are the other quarterbacks on the roster.