Constantly rebuilding A's extend Billy Beane through 2019

It's been a pretty good year for Billy Beane, sure, the Athletics are coming off a disappointing 74-win season, but Beane himself has been immortalized on film by Brad Pitt's Oscar-nominated performance in Moneyball and now Billy is on the verge of completing a deal to extend his tenure in Oakland through the 2019 season. Given Beane's stellar reputation throughout the league, it is hard to argue with the A's wanting to lock him up as long as possible, but through 2019, really? Is that necessary? Maybe it is just me, but something about this announcement just doesn't add up. Beane hardly seemed like a threat to bolt the Bay Area, in fact, his existing contract didn't expire until after the 2014 season, and that was based on a two-year extension that he signed in 2009 that technically hadn't even kicked in yet. Strange. Perhaps he had an out-clause in the deal? If so, he hardly seemed inclined to use it. There were several high-profile gigs (Angels...