In one Patriots playbook I’ve seen (the 2004 version), there were 25 different single receiver routes, and that doesn’t count all the available options. Nor does it cover where those routes are run in a split on the field, or how the receivers run routes in tandem. There were 17 different two-man route combos in the playbook I saw, and five different three-man route combos. Once you’ve mastered all that stuff, there’s then the matter of the call in any pass play – the name of the route group that a team decides on any pass play for anywhere from one to five receivers. Add in the protection at the line, and you have the start of what will be an eventual Patriots play call.