This was an awesome moment simply because it was Coach getting silly. Jess, Schmidt, Nick, and Winston have a lot of fantastic qualities, and silliness is right at the top of the list. Silliness makes a bad day good, turns disasters into adventures, and brings people together; if Coach can get silly, it means he fits right in with the rest of our favorite New Girl people. And it means we can look forward to more silly Coach moments in the future!
“That first-class ass is gonna be sitting in Coach tonight.”
Another way Coach is integrating into the group is by trying to get all up on Cece. His hilariously smarmy attempt at romance not only helps usher him deeper into the canon of the show, but also gives more excuses for Cece to come into play. Adding one more person to the core loft dynamic could have meant less screen time for peripheral cast members like Cece, but a dating plot line is one way to get her back into the limelight (at least until she ends up back with Schmidt..?).