YUP!!! Eating consistently and clean, lots of sleep. Seriously, when they say that nutrition is 80% of the game, they mean it. Cook all your meat on Sunday and portion it out into ziplock bags, then you can freeze it all and take it out as you need it. It take the same amount of time to bake an 8 pound box of chicken breasts as it does to cook one breast.
Eat every couple hours. Try to average about 1 gram or 1.5 grams of protien per pound of bodyweight.
Make sure you start with your goals, and then design a program. Most BBers are focussing on hypertrophy (muscle size). Strength is related, but we've all seen the little guys who lift WAY more than you'd think they can, and the bigger guy who's all show, no go.
Design it around the requirements of your position, unless you're looking at BBing as a second sport. If its all to improve lacrosse, look at plyometrics or sprints for your cardio, and more full body moves like squats, deadlifts, cleans, push presses. These full body lifts release a lot of testosterone and GH.
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You define yourself by the choices you make.
The will to win is nothing without the will to prepare. | 
