By Alek Arend The Las Vegas Raiders would like Derek Carr to be their franchise quarterback for the longterm. However, it appears that’ll only materialize if Carr is willing to take a bit less money than he was anticipating. Raiders head coach Josh McDaniels revealed on Monday that they’re indeed negotiating with Carr about an extension. But it doesn’t appear the Raiders are going to be willing to pay him top dollar. McDaniels clearly wants Carr to take a bit of a pay cut to allow the Raiders to build a strong roster to surround him. “‘Derek’s going to have to make decisions about what’s best …