JasonTx, I can only imagine how many "friends" a chapter assignor would get as the playoffs begin...that is one reason why relying on the chapter would be problematic, not to mention the ever possibility playing "favorites" that might creep into some chapters' assignments.
JoeStack, while not perfect, we as officials must remember that we are a "contract" and "part-time" employee when we officiate (not to mention that no where is it said we are ever guaranteed games)...on the other hand, the Coaches (who pick and must agree on the crews chosen to officiate) are full-time employees of their respective schools. Their livelihoods often depend on the success of their programs and teams.
In most examples, both coaches have seen and worked with the crews they choose and they like, respect, etc. the manner in which they officiate football games. My only suggestion to get more and better playoff games is that the crew work harder each and every game, each and every season and off-season to improve their quality of work. Set yourself personal goals and your white hat and fellow crew members set goals to get better at officiating (i.e. knowledge of the rules, mechanics, philosophies, etc.) and good things will come from that hard work.
Coaches talk and coaches recommend to other coaches what crews are good and which ones are not. THAT is how you get more, better, and bigger playoff games assigned!