Paul Sewald is exactly what the Diamondbacks desperately needed

Jul 20, 2023; Seattle, Washington, USA; Seattle Mariners reliever Paul Sewald (37) delivers a pitch during the ninth inning against the Minnesota Twins at T-Mobile Park. Mandatory Credit: Stephen Brashear-USA TODAY Sports

With a once promising season quickly slipping out of hand, Diamondbacks GM Mike Hazen found himself in the line of fire as fans called for immediate changes before the trade deadline.

There were certainly plenty of areas around the lineup that needed improvement; however, none matched the lack of arms in the bullpen.

Andrew Chafin, the Diamondbacks primary closer, saw his ERA soar to 4.19 after allowing five earned runs in a disastrous outing against the Cardinals. Entering…