Nik beat me to it but based on down, distance, formation, personnel, etc. 75% of all plays called this weekend could be "predicted" to a coarse degree. Run or pass.
So define predictability. Are we talking vertical pass (fly, seam, post, flag, etc.), down-and-out, down-and-in, slant, hook, screen(middle, bubble etc.), wheel route, RB in the flat, shovel, etc. etc. Or run, dive, off tackle, counter, sweep, zone read, qb draw, end around, reverse, etc. etc.
From my experience there are only 2 plays that are very predictable:
Dan Reeves always runs a Sammy Winder Draw play on third and long.
CU, the last few seasons, will never pass to the TE.
And Oh, I get it, Mike Leach is a genius. Is 4BTD suggesting that we hire Mike Leach as our OC? I'm all in favor of MM going after him to replace BL.