Interesting article here in that GM Mike Holmgren will run a base West-Coast offence in Cleveland just as he did though failed in Seattle ...check out the differences that show up especially in the NFL playoffs and consider what you see on the typical offensive sets of the Stamps and Argos.
As distinguished from the typical NFL pro-set using a tight end often for also the passing game, the West Coast offence relies on mostly short passes also to the RB whether or not a tight end is used in the set otherwise.
As distinguished from the spread, in the West Coast the RB is relied upon far more often on passing plays as part of the offence more than just the last outlet option in case all downfield receivers are covered or the QB is hurried.
In CFL terms you can almost take the base offence of the Stamps or Argos, strip out a man, and put it in the NFL for many of these West Coast and spread offensive sets.
This is particularly true when you see on the Stamps and Argos a bunch formation of receivers on one side off tackle, substituting effectively also for the bygone TE, and the RB pass option as are often Cornish or Boyd. Both Burris and Lemon are perfect for that offensive system though Burris is a far better CFL QB. As I have written repeatedly, give Lemon another season to get it right upstairs and he'll be fine for the system.
If you watch also Pac 10/12 NCAA football, the only brand of NCAA football I like any more other than my alma mater Notre Dame, you'll see that many of its offences run a West Coast set as well.
Though all teams use hybrid elements on certain downs and distance and change things up such as two-minute drill, run the clock, goal line and so forth, here is an educated guess at the 13 teams that come to mind who use a base offence different than the standard pro-set, which in most NFL offences is the set you see with only one tight end on many a first and second down and with that tight end a common and integral part of the passing game as well:
West Coast: CLE 2011/2012, SEA
West Coast/Pro-Set Hybrid (West Coast w/ frequent use also of TE for passes): SF, PHL
Spread: AZ, HOU, DEN
Ball Control/Ground & Pound: PITT, BAL, NYJ, KC, JAX
Hybrid/Unclassified Not Pro-Set Not Spread (And Sucks With Bad QB Now): CAR
I'd be interested to hear any alternative points of view for the NFL or CFL, with more grounds provided along with any I missed of course, as some of this post is just football junkie educated guesswork.