Adding Nathan Slaughter as a UDFA, then releasing him a few days later, coupled with what Ganguli said about players like Labhart being at Reliant from 7 .am. to 7 or 8 p.m., makes me think O'Brien is throwing everything at them all at once...then cutting the ones who can't hack it. Whether that's timeliness to meetings, aptitude on tests, and production on the practice field, it seems O'Brien is putting those players through rigorous "testing" and only the fittest players remain when the dust settles. The Boot Camp rookie OTA is to tear them down and build them up as new players who have no past; only a present condition that shows ability to remain or enough deficiencies to be released. Here's the quote from the article that I base my speculative theory upon: "With no restrictions on how long he could spend with them, Texans coach Bill O'Brien had them from about 7:30 a.m. to 7 or 8 p.m. during rookie minicamp. They were tested on the field and in the classroom. Their jobs were to learn as much as possible and say as little as possible. They've maintained the refrain that their pasts don't matter anymore."