Isiah Thomas has said he doesn't expect to make any more major moves this offseason, but that hasn't stopped him from looking into every option on the open market, including point guard Mo Williams. Two people with knowledge of the situation Thursday confirmed that the Knicks have had discussions with the Milwaukee Bucks about a possible sign-and-trade for the 24-year-old Williams.

Both, however, suggested that Thomas' inquiry is merely due diligence. A person with knowledge of the Knicks' plans said the interest in Williams, as well as in free-agent point guard Steve Blake, is not to be read as a move to replace Stephon Marbury.

On Tuesday, Thomas reiterated his plan not to use the mid-level exception to sign any free agents this summer. His inquiries into free agents in sign-and-trade situations may have as much to do with his attempts to cut down his 17-man roster to the required 15 as anything else. A trade that may add a small forward -- the Knicks are believed to be among several teams who have checked with the Bucks about the No. 6 overall pick in last month's draft, Yi Jianlian, whose agent, Dan Fagen, is said to be trying to push for a trade -- and rid the Knicks of some extra bodies is also a possibility.