The report Wednesday said Sculley declined to comment, but told the Canadian newspaper that he has been a long-time BlackBerry fan and user.
BlackBerry, based in Waterloo, Ontario, once dominated the smartphone market but put itself up for sale after being overtaken by Apple's iPhone and devices using Google's Android operating system.
"The only thing I would say is, I think there's a lot of future value in Blackberry," Sculley told the newspaper. "But without experienced people who have run this type of business, and without a strategic plan, it would be really challenging."
Sculley could not immediately be reached to comment on the report or confirm the quotes.
A BlackBerry spokeswoman said in an e-mail to Reuters that the company did not plan to comment on its strategic review until it approves a specific deal or otherwise concludes the process.
A group led by property and casualty insurer Fairfax Financial Holdings last month unveiled a $9 a share tentative offer for BlackBerry, but Fairfax did not reveal the other members of the bidding consortium.
BlackBerry co-founders Mike Lazaridis and Douglas Fregin are also considering a bid, a securities filing showed earlier this month.