You negotiate from positions of strength. ND has features and benefits that SC does not. Stick to those. Not everyone wants to buy the same product. You can't miss a pitch because you think someone likes another product more than yours. We're talking Notre Dame here not Indiana or Kentucky. If every salesperson had a product like Notre Dame to sell, there would be a lot of happy salespeople.
I can tell you right now, SC can't take all of the WR--DB's this year that want to go there. Vaughn, Sidney, Jones, Burton, Pollard, Long, Crawford, Jackson, Thompson, McNight and Butler throw in Arizona guys N'Keal Harry and Byron Murphy, not to mention a handful of national guys they are on and not even they have enough room... plus some of those guys would be buried for years at SC, where as at the DB positions, there is quicker playing time in South Bend.
ND is SC's equal (superior in many areas) and there should never be a time where they act out of weakness when it comes to recruiting.