Absolutely. No comparison whatsoever between those two excellent college RBs. I wasn't sure if Fenroy would measure out when he was tested by the NFL. But it didn't surprise me when he didn't. He had assets in the RB categories at enough of a combined level that made him a great RB in the system we used (most incredible QB/RB combo athlete misdirection handoff ever in college football). But Fenroy didn't peak in any particular RB category (speed, size, cutting ability). Eli is vastly more "shifty", he's actually by the measurements of the NFL "a bigger back" than Fenroy (Fenroy was a "weight lifter" for size - not natural frame size), Eli is quicker... and a very big asset Eli brings to the table is he is a phenomenal receiver. That adds more than doubles his value to the NFL. He can be used as a RB, receiver out of the backfield, slot receiver, and kick/punt return specialist. There really is no comparison to the two. But again... both are fantastic collegiate RBs.
Fenroy was utiltized precisely for what he could offer UL. Eli was squandered last year.