Despite walking way too many batters, Krook has been effective as both a starter and a reliever in the minors. In the majors, though, he’s given up 13 earned runs in five innings for the Yankees and Orioles. The A’s will likely keep the 30-year-old in the bullpen and see if they can figure something out with him. He’s struck out 109 in 77 2/3 innings in Triple-A the last two years.
