TCU teaches their secondary to divide their formations down the middle of the field and after you do that to each side there’s only 3 Formations that the offense can give you.
- Pro - TE and WR to one side
- Twins - Two WRs to one side
- Trips variations
(with the addition of Quads that adds a new wrinkle which I’ll get to in a separate post)
4-2-5 Cover 3 will be your base play just as Oneback stated in his Robber description. The Read side, will of course, be the Trips side. Vs any 3x1 formation you want to shift your LB over towards the trips side to wall off the first thing that comes inside. You’ll also want to Shift the coverage to the Trips side. This gives you close variation to Quarter/Quarter/Half Coverage. You’ll also want to take that read side SS and put him a Buzz zone to handle everything outside the hash and it keeps him in place to handle run support.
In this coverage I personally user the FS and run the same Robber Rules with him and try to handle anything that threatens the inside. The SS in the Buzz zone handles anything that goes to the outside of the hash leaving the C to continue his dropback to handle anything deep. With the FS you, seriously, have to follow the ROBBER rules or the Middle is open. Remember that if the inner most reciever runs a shallow the responsibilty for him is passed off to the LBers in hook zones, and you have to gain depth with the FS and look for the backside post.
Base Play: 4-2-5 Cover 3
- Shift LBs and Coverage toward the Trips side.
- Hot Route the Trips side safety to Buzz Zone.
- Align FS over the inside most threat
Proper Alignment is very important vs trips sets.
(H/t to Brophyfootball.blogspot and RunCODHit.blogspot for inspiring this and the next series of updates)