That play is a good illustration of the good and bad of Terrell Lewis.
Bad:
Had his eyes in the backfield following the motion to the other side of the field. Took a step toward the motion in the wrong direction instead of staying put covering his area and trusting his teammates on the other side to make a play.
Good:
His speed and quickness allowed him to recover and make a play on the WR after the CB almost whiffed on the tackle. Had he trusted his teammates on the other side of the field to make a play on the motion to that side, he could limited that to at most a no gain, and at best had a chance to dislodge the ball with a crushing hit. He can make up ground FAST.
This is a hard read, so TL deserves the benefit of doubt.
TL key is the LT. I can 98% assure that his reads are:
If LT steps inside: Slow play for bootlegs. Be over the top at 45 degree angle if rocket toss get out the gate.
LT steps outside or forward: Fill the alley: appears to be the force(the guy leverages the play back to the inside) if so, he has pitch on option
The tricky part: If you read high hat, get in zone. If there is no threat may be ask to undercut under #1.
The LT showed high hat but also took a step forward, so you are frozen. This is why RPOs (run/pass options) are very popular it freezes the D and gets the ball out fast.
I would like to see our DBs stop going skydiving when try to make tackle