I agree. burn that roster to the ground. it will only help you.
one strategy i've used in this kind of situation with mass schollies in a big rebuild is grabbing a borderline D1/D2 jr college player or two...they're cheap, if they have high WE they'll gain 80+ in a season, they'll be superior to what you had there, and they'll only be around 2 seasons so you're not handcuffing yourself to a subpar player for 4 years. and of course, what others said, take walk-ons, etc.