In his final game for the Eagles on Sunday after announcing his retirement, Kennedy slotted eight goals in a memorable display to end his outstanding career - the equal second-most goals kicked in a player's final game in VFL/AFL history.
However, speaking on Channel 9's Footy Classified, Cornes believes that the clubs should be making pitches for the 34-year-old to play again in 2023.
In recent weeks, Melbourne's key forward set-up has been of much discussion with the likes of Tom McDonald injured, and Sam Wiedeman, Ben Brown and Mitch Brown coming in and out of the side, causing some issues in their offensive ability of late.
"Sell it to him - you don't have to train until January, we're going to pay you a good contract for two years, you'll play 16-17 games for that year.
"If he's not a player that Melbourne should be going after I'd be surprised."
A two-time Coleman medallist and three-time All-Australian, Kennedy played 293 AFL games throughout his career at both Carlton and West Coast, slotting 723 goals and becoming the Eagles' all-time leading goalkicker in the process.