Northwestern coach Pat Fitzgerald returns eight of 11 offensive starters this spring with seven more starters returning on defense, but there are still plenty of holes that will need to be filled this fall. "It's basically like taking apart a puzzle and when we put the puzzle back together on the board and we talk about it as coaches we've got some missing pieces because of graduation, so you have to put the puzzle back together and figure out where those pieces are and that's spring practice. That's where we're at right now. That's the biggest macro goal. What are the new pieces, what do they look like, what are their strengths, how can we put together a plan for the back half of spring and probably most important for fall camp is what do guys do well and how can we play to their strengths? "We've got a lot of pieces back, which is encouraging, more pieces than we've ever had, with experience. But we'll have to identify those new pieces and get it figured out." Fitzgerald also talked about what he expects from quarterbacks Kain Colter and Trevor Siemian next season. "The biggest aspect is the leadership component," he said. "They do a terrific job already but helping us take that next step --- I'm not trying to minimize getting to 10 wins but getting to No. 11 is a lot harder than getting to 10. That's our focus around here. What's happened in the past is in the past and how are we going to take the next step? A big part of that is leadership from the quarterback position. Both those guys are poised and ready to take that next step."