One of Twitter's biggest investors doesn't want Jack Dorsey to be the company's new CEO

Many people believe Jack Dorsey is the only logical candidate to take over as Twitter's permanent chief executive after current boss Dick Costolo announced his resignation last week. Dorsey is after all a Twitter cofounder, board member and former CEO and is now the interim CEO.

But Prince Alwaleed bin Talal, who was one of Twitter's earliest investors and who owns 5% of the company, doesn't agree.

In an interview with the Financial Times, the Saudi billionaire said Dorsey should return to his other job, as CEO of the mobile payments company Square, rather than take on the Twitter job for a second time.

Instead Prince Alwaleed thinks the new Twitter CEO should have the kind of marketing experience required for the company to encourage more users to join the platform.

"Jack has another company called Square, which requires a lot of attention and a full-time job 'round there," Prince Alwaleed told the FT. "I believe and trust that Jack Dorsey is there on a temporary basis. The new leader has to have tech savviness, an investor-oriented process, and a marketing mentality."

Prince Alwaleed didn't name a suitable successor, but his description sounds a lot like Adam Bain, Twitter's current revenue chief.

The appointment of Bain would be warmly welcomed by the advertising community. Advertising executives told Business Insider earlier this month (ahead of Costolo's resignation) they would love Bain to ascend to the CEO role.

Forbes has also pegged Bain as the front-runner for the CEO role, adding that Bain wanted the role, with a source saying the former News Corp executive had "total loyalty of half the company."