@DeltaAssist on twitter is VERY helpful in these situations. I've been protected a number of times by them (even one time before I was a medallion member!) when I've had tight connections. That one time before I was medallion, I actually did miss the original connection (by less than a minute... entry door latch was closing as I got to the gate) but the folks on twitter had already put me on the next DTW-ROC, and in an exit row too

They're one of the best parts of Delta imho

-J.