NLI is a one year contract with the school, not the coach. (changes with the Big5 in '15-16.) He can be fired before you attend, but you get the one year. Then again, you can follow him to his next school if he offers a scholly. As NCSF says, it's brutal, real and until you sign, zero guarantees. Plenty of kids take the "guaranteed" walk on roster spot- no money-, do well (I can think of one Campo frosh with plenty of PT that first year at Cal) then get scholarshipped years for 3-4 years. Know your head coach, expect and demand honesty from the recruiting coordinator, work your tail off, go to class, and good things happen.