The former forward thinks the Tottenham chairman must do something about a certain striker...
Indeed, Kane has become central to Tottenham's hopes of success - as their main centre-forward and only recognised out-and-out striker.
And Marsh believes the 22-year-old deserves recognition in the form of a huge salary and a lengthy new deal.
If I was Daniel Levy I would sign Harry Kane to a new 4 year contract on £20mill per year !!— Rodney Marsh (@RodneyMarsh10) January 21, 2016
A bigger issue for many Spurs fans, of course, isn't holding onto Kane but finding a back-up for him.
Is Saido Berahino good enough? Could Ayoze Perez be prised away from Newcastle? Is Jackson Martinez in enough form to attract a bid?
Realistically, Tottenham will suffer if they don't have a stand in for Kane. Yes, Heung-Min Son can play as a centre-forward and, yes, Kane could survive the rest of the season without injury.
But even the law of averages suggests the 22-year-old will miss a game or two through fitness-related issues, leaving the north London side needing a certified striker who can get 5-10 Premier League goals between now and the end of the season when called upon.