Alex Smith could have moved on at various points during his eight-year stint with the 49ers. But he chose to stay because, as a one-time No. 1 pick in the draft, he felt a responsibility to the then-struggling franchise. Who’s your caddie? Alex Smith returns to the Bay Area Sunday to take on his one-time mentor Quarterback Alex Smith said the chance to start in Kansas City was all that matters about his departure from the 49ers.