Now, during an appearance on In Depth with Graham Bensinger, Smith touched on the dysfunction he felt at times with the 49ers. He even noted there "definitely was a few-year period" where he felt more comfortable playing games on the road than at home.
With the Chiefs' selection of quarterback Patrick Mahomes in the first round of the 2017 draft, Smith also acknowledged this could be his final year with the team:
49ers legend Jerry Rice was not shy about criticizing Smith during the QB's time with the franchise. While working as an analyst for ESPN during the 2011 season, Rice said he wanted to see San Francisco's coaching staff "take the diaper off this guy and let him play."
Even with the added presence of Mahomes in Kansas City, Smith admitted he's not going to be shy in speaking out with information, advice or anything else for the young quarterback.
"If something comes up with Patrick that I see and I want to say, I'm certainly not going to bite my tongue and not say it," he said.
The No. 1 overall pick by the 49ers in 2005, Smith is aware there's added pressure with that label and admitted he hasn't always lived up to it.
"I haven't reached my potential as a quarterback," he said. "I've shown flashes of it, but I haven't done it really at the level I know I'm capable of."
Smith's Week 1 performance against the New England Patriots in which he finished with 368 passing yards and four touchdowns in a 42-27 win is an indication he can be more than a game manager.
The key for Smith—and Kansas City's Super Bowl hopes—will be week-after-week consistency.