[If he thinks it'll work...fine. Can't hurt to try, right? And what other options do they have?]

He's in Ecruteak, if you'd prefer to do it in person. I don't think he'll be leaving the Pokemon Center for a while.

The only person who's been confirmed to be a Rocket is Cobra Commander. Other than him, unless your source has come through with information, we don't have any other people to confirm or suspect.

[Their inside source isn't really coming through, sadly...]