Brothers Blake and Jason Krikorian, CEO and SVP-business development, are out, effective immediately. Jason Hirschhorn, who runs the company’s Sling Media Entertainment unit, plans on staying through the end of February; Ben White, chief creative officer at the entertainment group, will stay on through Feb. 1.

Some background from paidContent’s Staci Kramer, who had the story first:

Also leaving: Greg Wilkes, VP-sales. I’ve been told COO John Gilmore will take the reins for now but that may not be official. While no one is talking about any differences, there certainly is a big cultural gap between the tech-creative side and the traditional cable team at EchoStar.”

To tease that out: The Sling team can rightly point to a string of successes–the company racked up a number of awards at both the Consumer Electronics Show and MacWorld last week–but if things were humming smoothly at Echostar, you’d think the company would find a way to make them stick around.

The Slingbox is a potentially disruptive technology, but it’s still nascent, and Sling.com just launched late last year and will need a motivated team to help it gain traction in a crowded field. All those involved say they’ll be taking time off; everyone who knows the team involved finds that hard to believe.