Are you saying that the first time he ever picked up a cue was two years ago, or that he has only been playing heavy competition for two years?
If I remember the story right from a conversation I had with Brendan's dad last spring at the NCS 8-Ball Championship in Feb. 2009...Between 2-2.5 years ago, Brendan's family bought a small non-slate style table because they thought it would be a nice recreational addition to the household. No one in the family at that time was involved or had a history of involvement in pool in any way.
Brendan showed a deep interest in it and started playing. Soon he saw, I gather, through ESPN and such, regulation pro style tables and asked if the family could get one of those. Well...being an enthusiastic and mutually supportive group

the Crocketts soon aquired a 9' table. This was about 2 years ago I believe.
It was also at this time, that Brendan got to know Sal Butera who became his coach and mentor. Sal, also a tremendous player as well as the owner of a classy pool room in Moorpark, CA (Butera's) saw Brendan's natural talent immediately and started working with Brendan. Brendan practiced and played but did not compete till the 2008 U.S. Open 9-Ball Championship in Chesapeake, VA. It never ceases to impress me when I think about that fact.
He then went on to compete in U.S. Junior events including the U.S. Junior Nationals and Worlds, and Southern California local and regional tournaments. He is a gifted talent, but also a level headed and hard working young man who is also an excellent student. Each time I've been around him, I'm impressed by his demeanor when he has a missed shot (which does not happy all that often). He is analytical in his approach and does not appear to let emotions take control. This is a lesson many adults struggle with at the table that he has, at a relatively young age, mastered quite well.
Whenever he is in between matches, he always seems to ask if there is a table he can practice on.
I strongly suspect that whatever Brendan chooses to excell and put his energy into, whether it's pool, his education, any sport or endeavor, he will be very successful. He has an excellent support group of positive thinking an intelligent friends and family who care about Brendan's best interests.