How can we say Armstead is on the bubble, when we have no idea what he's ready to do? He could, conceivably, be more ready than any of our DT prospects, with three coming back from injuries and three UDFAs available to anyone.
Armstead has shown the ability to deliver the type of play we're looking for, but his health and readiness are a mystery. On the bubble means a player is known to have a marginal chance and we don't know that about Armstead at all.
Huh?
The reason he is on the bubble is because because he has never shown anything at this level, and like most players who spend their first year on the IR the likelihood he will turn into a productive player is very questionable. I hope he comes into camp and tears it up and wins a job but as of now he is as much a bubble player as they get.