Ken Berger of CBSSports.com reports that longtime NBA executive Donnie Walsh has been given permission by the New York Knicks to explore positions with other teams, possibly including the Portland Trail Blazers. ------------------------------ Donnie Walsh, who rebuilt the Knicks' roster and battered image before stepping aside as team president last June, has received permission from the organization to speak with other teams about an executive position, his agent told CBSSports.com Friday. ... The Portland Trail Blazers already have begun yet another GM search, and it is believed that Walsh will explore that situation first since the job is known to be open. ------------------------------ Blazers president Larry Miller said last week that the team's GM search is back on, nearly a year after former GM Rich Cho was abruptly fired. -- Ben Golliver | benjamin.golliver@gmail.com | Twitter