By WFAN.com

Geno Smith apparently fumbled away his playbook last season with the Giants.

In an interview with WFAN's Joe Benigno and Evan Roberts on Friday, Giants great Carl Banks said the quarterback lost his playbook during training camp and went the entire season without it.

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Saying "I'm going to say something I shouldn't say, but I'm saying it anyway," Banks made the comments while discussing Smith's tweet Friday that former Giants coach Ben McAdoo deserves an apology for the backlash he received over his benching of Eli Manning last season. McAdoo inserted Smith into the lineup and was fired soon after.

Smith is now a backup QB for the Los Angeles Chargers.

"Geno, you should apologize to your former teammates since you lost your playbook for a whole year," said Banks, the Giants' radio color analyst.

"One hundred percent, didn't have his playbook for a whole year and tried to fool everybody. Everybody knew because they can check whether or not you're looking at your plays with these iPads."

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Banks said Smith could have asked for a new playbook but that would've required him admitting his embarrassing blunder.

"If anything would've happened to Eli Manning, you wouldn't have known what the hell was going on for the whole year," Banks said.

Smith returned to Twitter on Friday to deny Banks' accusation.