Michael Wolf has stepped down as president and chief operating officer of MTV Networks.

In what is being seen as a reshuffle of top management at the company, Nicole Browning, president of affiliate sales and marketing, is also leaving.

Judy McGrath, chairman and CEO of MTV Networks, said: "Michael’s been a long-time strategic partner to MTV Networks, and we’re grateful to have had his undivided attention devoted to our company for the past year. We accomplished everything we set out to do together, restructuring our Ad Sales and our Affiliate Sales and Marketing businesses for the multiplatform world by bringing in digital sales expertise and expanding the reach of our distribution strategy to include VOD, wireless, and internet partners. Michael completed a strong and actionable long-range plan, and brought some of our best and brightest minds in to the company. We know he has a lot to offer the media industry as a whole, and wish him all the best as he moves on to his next adventure."

Wolf said it was "very gratifying to leave the company with a solid roadmap for success and so well positioned for future growth."