Pettibone, 22, could be the most polished; he finished the season in triple A but nearly doubled his walk rate there. Cloyd, 25, allowed eight home runs in 33 major-league innings after tearing through the International League. Morgan, 22, has a better power arm than those two and earned high marks from two scouts who saw him in 2012. Martin, 23, was acquired in the Shane Victorino trade and pitched well at double-A Reading.