Yet that is what they are expected to do, according to Conor Orr of the Newark (N.J.) Star-Ledger.
That's probably not exactly the ringing endorsement cornerback Ellis Lankster was looking for. Jets head coach Rex Ryan is willing to do anything to fix the secondary, which has shown a lack of depth and will likely be undergoing a lot of changes this season.
The truth is, they'll never know until they try. Things have worked out so poorly for McKnight at running back up to this point, it couldn't hurt to try him out at a new spot.
Just last year, the Patriots made it to the Super Bowl with a patchwork secondary that included wide receivers Julian Edelman and Matt Slater playing cornerback and safety, respectively. The Jets don't have the Patriots' high-powered offense to fall back on, though.
But it's not as though McKnight is completely green at the position, either. He has played there before and practiced there this season, according to the Star-Ledger. In fact, the Jets have had some success with him at cornerback.
Against the Baltimore Ravens in Week 4 [of the 2011 season], McKnight ...blitzed from the cornerback spot, forcing an errant pass that was intercepted by David Harris and returned for a touchdown.
It's not likely that every play will work out that favorably with McKnight in the defensive backfield instead of the offensive one, and if there were ever an indictment on Jets GM Mike Tannenbaum's inability to stockpile depth, this is it.
But desperate times call for desperate measures.
Erik Frenz is the AFC East lead blogger for Bleacher Report. Be sure to follow Erik on Twitter and "like" the AFC East blog on Facebook to keep up with all the updates. Unless specified otherwise, all quotes are obtained firsthand.