The past two seasons have been filled with disappointment and negative outcomes, but one of the few resoundingly encouraging developments has been the emergence of Glen Perkins at the back end of the bullpen. After fizzling as a starter, Perkins made a supremely successful transition to relief duty and, after signing a contract extension last year, he's in position to provide the Twins with stability at the closer spot for years to come, as long as he can stay ...