A's 2021 MLB team pitching rankings: Team ERA - 4.02 (13th) Starters ERA - 3.91 (9th) Bullpen ERA - 4.21 (18th) Team WHIP - 1.26 (12th) Starters WHIP - 1.24 (12th) Bullpen WHIP - 1.28 (10th) Team K - 1332 (21st) Starters K - 862 (7th) Bullpen K - 470 (30th)

lack of bullpen power arms showed up over course of the season A's 470 bullpen Ks were just 63.6 percent of the MLB-leading Rays (739)