Donnie Walsh has stepped down from his post with the New York Knicks as president of basketball operations, according to Brian Mahoney, AP basketball writer.

It's pretty astounding news considering that the Knicks and Walsh were expected to agree on a contract extension as early as this week, but that's obviously not going to happen now.

Although Walsh will remain with the team in a consulting role through the 2011-12 season, it's a pretty detrimental blow to a franchise that has reclaimed some of its past success with Walsh at the helm of controls.

Walsh's resignation will have a serious impact on the future plans of the Knicks, as the team will need to find a new person to replace him, and that candidate will also decide on the future of current head coach Mike D'Antoni.

It's going to be an interesting summer for New York once again, and despite the fact that they have two superstars on the roster in Carmelo Anthony and Amar'e Stoudemire, they're going to face a plethora of challenges.

Let's just hope that Isaiah Thomas doesn't somehow creep back into the picture.  

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