Just keep doing the routine that you are because they are much more effective when you are training for football than a hypertrophy (gettin bigger) program (cleans are by far the best possible lift for football players). However, when the off season hits you can train for size as long as you keep with at least a little agility training (especially since you are in a skilled position).
Also, make sure you take your squats ass-to-grass as it brings the posterior chain into the lift more (PC= hamstrings, glutes, lower back) and this will make you faster. Also, train the hell out of your calves and hamstrings in the offseason, as powerful calves and hamstrings are what make you fast.
I dont know how much your coaches are involved in the off-season, but if you have to come up with your own routines, add in speed ladder and plyometric work. When I added a lot of calf and hamstring work and agility training I dropped my 40 time from a high 4.9 to a high 4.6 and gained weight, so it is probably in your best interest. Good luck in the season.
P.S. - Whenever you arent doing something with both hands you should be eating. I wish someone would have told me that when I was a sophmore.