Why Jack Dorsey Is Optimistic About Twitter's Growth

NEW YORK (TheStreet) -- Twitter's (TWTR) has an "extremely strong roadmap" going forward, according to new interim CEO Jack Dorsey in a joint interview with departing CEO Dick Costolo on CNBC.

Dorsey was named interim CEO of the social networking giant in an after hours announcement on Thursday effectively replacing current CEO Costolo on July 1. He said his primary focus moving forward is delivering the social networking sites' products faster and with even more quality.

"The more the product simplifies, the more the product feels straightforward, and the more we ship and execute, the more people will find value in it, and that's really what we're focused on," Dorsey said in an interview with David Faber.

Dorsey also said that working for both Twitter and Square, the payments company he founded in 2009, should not be a problem once he takes over the top spot at Twitter in three weeks. He added that he sees no need to bring on a chief operating officer, and that the employees of both companies will help him in his transition.

Shares of Twitter were up 1% following the interview to $36.19, after having been up as much as 7% in after-hours trading on Thursday, following the news of Costolo's departure.

"I think the whole team serves that function, and I don't see any gaps in that leadership team and I don't have any gaps in the leadership team at Square," Dorsey said. "I feel very confident that together we can move as one entity, as one team and really focus on our execution and our pace against our strategy, which I believe in."

Costolo also remained optimistic about the company's future, calling it "extraordinarily healthy." Costolo said his decision to remain on the board is due to his dedication to Twitter, and that having three former CEOs on the board would not pose a problem as the company looks for a permanent replacement.

"All of us want to make sure that the very best person possible steps into the role, has the freedom that they'll need, the freedom that we'll want them to have, to do everything to do everything they want to do and lead the way they'll want to lead," Costolo said.

Dorsey remained coy on whether or not he would be willing to take on the job full time, saying he was not focused on it and that his job was to keep the company's cadence and execution levels high.

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