It’s official. Former Arkansas head coach Eric Musselman has inked a deal to make him the new head coach of USC men’s basketball. And we’ve got the picture to prove it. USC basketball’s social media page released a picture of Muss inking his new deal on Thursday afternoon. Shortly after the news was reported on Thursday afternoon, USC announced that the Trojans were hiring Eric Musselman as the new head men’s basketball coach. USC issued a lengthy release to notify the hire was official. And Musselman, who is coming from Arkansas after a generally successful stint there, shared his excitement …