Jennifer Garner Can Really 'Run a Family,' Says Costar

By Paul Chi

08/25/2008 at 02:15 PM EDT

Jennifer Garner and Ben Affleck will have no trouble juggling baby No. 2, says Garner's pal and Alias costar Bradley Cooper.

"She was a great leader for a TV show I did with her and she can literally do anything. So she can certainly run a family," Cooper told PEOPLE at the U.S. Open Heineken Premium Light players kick-off party in New York on Friday. "She will have no problems having two kids."

Cooper, 33, who also costars with Affleck in the upcoming film He’s Just Not That Into You, said the couple has what it takes to be "perfect" parents of a growing brood.

"She’s wonderful and a genuine good person. She has all the qualities in being the perfect mom – very sweet and loving."

Garner and Affleck are already parents to daughter Violet, 2.

And, Cooper added, "Ben is a fantastic guy. I loved working with him and he’s a great dad. They will be very blessed."