Here's the second and more harmful of the two triple/speed option plays. Let's take a look at the presnap alignment:
As mentioned, this is probably not a read yet, but Forcier is still in charge of reading the backside defensive end, who is crashing down on Shaw and coming in unblocked (as designed). This doesn't tell us any more about whether or not Forcier was given the option to hand the ball of to Shaw here because, as you can see, with the DE crashing down on Shaw, the correct read is to pull the ball. However, you can also see the playside cornerback who showed blitz is now also crashing down on the play. I assume that in the future, when this play is more of a factor in the playbook, Matthews (whose corner is crashing on a blitz) will be instructed to turn and look for a quick pass. This is not in the playbook yet.
first play, Purdue played a lot of man/assignment football that, if the coach is good enough and has enough of the playbook open, will eventually crush. Again, Michigan just isn't there yet in their development.
This corner blitz was a really good call by Purdue, but Michigan's alignment on the first triple option play didn't give it away. This is just kind of bad luck and probably a bad play on Forcier's behalf. Bummer.