Glee club director Will Schuester ( Matthew Morrison ) institute a " booty camp " to hone the dancing skills of New Directions members Finn ( Cory Monteith ) , Mercedes ( Amber Riley ) , Puck ( Mark Salling ) , Kurt ( Chris Colfer ) and Blaine ( Darren Criss ) , and have Mike ( Harry Shum Jr . ) instruct them . As he is too busy to direct the upcoming school musical West Side Story , guidance counselor Emma Pillsbury ( Jayma Mays ) , football coach Shannon Beiste ( Dot @-@ Marie Jones ) and New Directions member Artie Abrams ( Kevin McHale ) take charge of it .