So again, all you see is supposed potential but hypothetically, if they're in a postition to consider releasing him at the end of training camp, it's because he hasn't put his speed and "short area quickness" to use. So you've already decided that he's too valuable to lose and already has a roster spot locked up even though in this hypothetical situation, he was out produced but younger players? That nonsense. Make the guy earn it. To say he has a spot locked up based on potential is ridiculous.
Miles Austin's first three years in Dallas:
2006: 0 catches, 0 yards, 0 TDs. 29 KR for 753 yards. 3 fumbles.
2007: 5 catches, 76 yards, 0 TDs. 24 KR for 612 yards. 0 fumbles.
2008: 13 catches, 278 yards, 3 TDs. 29 KR for 624 yards. 1 fumble. Missed four games with injury.
You don't think there were better pure wide receivers than Austin in camp those three years?
Look, there's lots of different kinds of backups. Some are guys you have in case they need to come into the game and give you quality snaps. But some spaces are reserved for players with elite ability but who are raw, just as Austin was when he came out of Monmouth. Your "hypothetical" where you assume Gates comes into camp and doesn't show speed and quickness is fairly well useless. Gates has certain physical attributes and those aren't going to change, anymore than Ryan Tannehill is going to come into camp as an unathletic dumbass who can't hit the broad side of a barn.
People always seem to view rookies as empty vessels for their hopes and dreams where they're as raw and unpolished as anyone, especially when they're sixth and seventh round picks or even UDFAs. If you cut Gates for Matthews or Cunningham all you're doing is cutting one kind of potential for another.
Gates would have to be pretty goddamn awful for me to cut him. He'd have to have shown no work ethic, no classroom smarts, a bad attitude and bad play on the field. He'd have to be bad enough that if it was Hartline or Bess or
anyone on the team who performed in such a manner -- no matter their salary -- you'd still cut him, just on general principle.