Anyone on the fence about strapping up for an NFL season isn't someone I want on my team.
Especially in the cases where one guy had apparently dropped a bunch of weight because he was retired and the other had told the team pre draft he might not play this year. We brought in Billy Price during the offseason but chose not to sign him and wound up getting him now.
I was looking at a story about Lecitus Smith working out at C some and it said right in there the Cards don't think Harlow is big enough to play OL in the NFL they want someone stronger which is why they are looking at Lecitus as the possible backup C. In the end they apparently kept Harlow because he can play multiple positions, and disregarded how poorly he plays them.
But it does bear noticing, it's VERY likely next year our starting C will be a guy who was on IR his entire rookie year and has never played Center before. We like Smith apparently but again in our offense with all the shotgun snaps it's risky to play a guy with little experience there. So wouldn't surprise me at all if we have to draft a C next year just in case Lecitus isn't ready.