Poll: Pac-12's most improved players

Every season coaches talk about being young. But eventually those young starters and contributors become veteran players. And sometimes breakout stars.

Even more dramatic: Sometimes players go from star to superstar -- see Oregon running back LaMichael James -- who went from all-conference to unanimous All-American, Doak Walker Award winner and Heisman Trophy finalist.

So who do you think will make the biggest jump in 2011?

It's impossible to predict, but we've got five candidates.

Oregon State QB Ryan Katz will be in his second year as a starter, so he should make a jump. A lot depends on his supporting cast, particularly the health of his top targets: James Rodgers, Jordan Bishop and TE Joe Halahuni.

Arizona State lost receiver T.J. Simpson this spring, but Gerell Robinson stepped up and more than filled the void. The Sun Devils like to pass, and Robinson figures to be the top target.

Conrad Obi was an afterthought at Colorado before the this spring, but the talented but previously underachieving defensive tackle dominated this spring. He could work his way into the 2012 NFL draft.

USC cornerback Nickell Robey got picked on early in the 2010 season, but that won't happened in 2011. He improved dramatically last fall and he turned in an outstanding spring for the Trojans.

As for Washington's Alameda Ta'amu, he's a 330 pounder who's more than a big body in the middle of the Huskies D-line. He's an often dominant playmaker.

But who makes the biggest jump in 2011?