In any given week, teams of high-priced lawyers fan out across the country to defend Bill Cosby amid a cascade of sexual assault allegations, defamation claims and insurance disputes.The disgraced TV star is spending millions in a frenzied bid not just to stay out of prison but to salvage what is left of his reputation. Legal experts say he has nothing to lose.“This thing’s going to be tied up in litigation anyway, so you might as well look like you’re the aggrieved party,” said professor Laurie …