Donald Trump's campaign announced several staff changes on Wednesday, including the addition of Stephen Bannon. | POLITICO screen shot Ex-Cruz spokesman: New Trump camp CEO 'a little controversial'

Donald Trump's new campaign CEO Stephen Bannon is "a little controversial," Ted Cruz's former campaign spokesman Rick Tyler said Wednesday.

"You probably hear from a lot of people who have worked with Bannon that he's not the easiest person to get along with. He has a very volatile temper," Tyler said on MSNBC's "Morning Joe."


Noting that Bannon, who is temporarily stepping away from his role with Breitbart News, has "never worked on a campaign," Tyler added, "we'll see if he's actually there to manage a campaign when he's never done one before. We'll see."

In announcing the campaign reshuffle, Trump's campaign resurfaced Bloomberg Politics' description of Bannon as "the most dangerous political operative in America."

As far as Kellyanne Conway's promotion to campaign manager, Tyler called it a "good addition" for the poll-obsessed Trump. Conway, if she travels with Trump, would be able to "easily" convey to Trump the kind of "language [he] should be using and show progress" in places where he is trailing.

The other important factor to consider, Tyler said, is the need for Trump to appeal to people outside of his rallies and speeches, like the one he delivered in Wisconsin on Tuesday night. Tyler called Trump's speech "very good and disciplined" as well as "the right message."

"He needs more people and needs to speak through the camera and to the people who are watching. And those are the people that he needs to get. If he can understand that, maybe he can get on message," Tyler said. "I'm skeptical, but we'll see."