They need something to spice up the average family sitcom. Liv&Maddie (twins,fame like hannah montana). Austin & Ally (again, the music/fame thing). Good Luck Charlie (umm.... umm....ok nothing but it was a decent show)
I thought Good Luck Charlie was one of the best shows Disney made because it didn't really need some ridiculous secret or edge to spice it up, it was just about a normal family with normal family problems and the right amount of drama vs. comedy and it was awesome
yeah they probably could've got 7 seasons out of GLC... how crazy would that be to see charlie grow up on the show, but it was that good/funny/watchable