Yes players didn’t deliver but that doesn’t absolve the manager. Did the infield decide to play in with one out on their own? Ball went off the glove there. Let’s not act like the manager has no impact.

Bases loaded & 1 out and the infield is in? Corners in and middle at DP depth allows either a DP or at least an out. Ball goes off the glove. Next AB same defensive alignment and a line drive that would have been caught by the infield goes into the OF.