Harbaugh explains rationale for not playing Alex Smith

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Instant Analysis: 49ers select Eric Reid 318361	49ers take on Packers in season opener 311046	Nate Montana feeling pressure under center 301466
Kaepernick on Super Bowl: 'Last few plays wasn't the problem' 301041	Kaepernick: 'Trying to be the complete package' 301046	1-on-1 with Jed York 300856
Sneak Peek: 1-on1 with Jed York tonight at 9pm on Chronicle Live 300501	Gore makes bold Donaire-Rigondeaux prediction 297921	Bigger Bay Area star: Kaepernick or Posey? 292866
Asomugha: 'I know the level I can play at' 292251	Will Asomugha have more success with 49ers than in Philly? 292261	Harbaugh on Kap: 'Satisfied is a word that confuses him' 269976
Aldon Smith updates his shoulder recovery 269456	1-on-1 with 49ers kicker Phil Dawson 269161	Q&A with 49ers WR Anquan Boldin 269166