With Michigan State up 15, Costello sets a ball screen for Valentine out past the top of the key. He doesn’t connect sharply on Johnson’s body as Bielfeldt guards Valentine’s move right:
Bielfeldt continues to defend Valentine on the hedge. Johnson starts to come over left as Costello rolls down to the basket:
As Bielfeldt heads back down to recover on Costello, both him and Johnson are close on Valentine, leaving Costello open in the paint as the rest of Michigan State’s players spread out the Hoosiers on the floor:
Valentine whips a pass to Costello as Hartman stays home:
Bielfeldt eventually gets back down to Costello. But it’s too late as Costello puts the Spartans up 17:
By starting the action out past the top of the key, it leaves a lot of open space in the middle of the floor and Costello and Valentine worked to exploit that for the bucket.