Mathias gets a pass. He was trying to avoid a roughing the passer call, and in his mind, he had Young wrapped up long enough that the play was effectively over. It was bizarre to watch, and frustrating as all hell (considering that if he takes Young down, it's game over,) but it had nothing to do with a lack of effort. Just a mental mistake by a rookie starter.. and something you should expect when your #1, 2 and 3 DEs are hurt.
As far as Eli goes, he was absolutely terrible on Sunday, from start to finish. His first pass of the game landed at Jim Finn's feet, and his last pass of the game was essentially the game-ending interception. His mechanics, decision-making, and confidence are all in the gutter right now, and I don't think anyone knows how to turn it around. Maybe he'll have a long talk with Peyton over the next few days..
Three straight losses, including one of the biggest collapses in franchise history (horrible, horrible memories of San Francisco floating around in my head.) Getting Stray and Umenyiora back on the field may be the only way to keep this season from devolving into a total train wreck, if it hasn't already. 3-0 in the NFC East is now a very tenuous life preserver.