This is why I couldn't understand the "pass off". After he let Doyle go, there was no one left for him to defend except the down holder. Milano's reaction after the play was very revealing. But I digress...
All I can say is that when Klein was sent on a blitz, he got home
Covering a good TE seems to be a weakness for the team. Hopefully this is something they can recognize and fix. Ebron, Jonnu Smith, Tonyan, Kelce, Mark Andrews, Njoku/Bryant are all possible matchups