I know it would be ideal for Grunwald to find a previously undrafted big man who is under the age of 23 and holds promise as a future starting center. At this point, however, I'd be fine if the Knicks settled for the known quantity of Jared Jeffries. From David Aldridge's Morning Tip post:
"Last year, Blazers insiders will tell you, Jared Jeffries was as important to the day-to-day operations of the squad as Rookie of the Year Damian Lillard or my cousin LaMarcus, the All-Star. Jeffries was a mentor to the younger players, a total professional, great in the locker room, smart, engaged teammates with his personality -- and, most importantly, did all this while accepting a playing role of limited minutes on a rebuilding team. Those things matter."
You could have worse candidates coming off the bench to guard opposing teams' centers, so he also fits a positional need.
At this point, I think the Knicks may be underestimating the loss of veteran leadership they won't have back this year with Sheed, Kurt Thomas, Camby and that point guard who quit on us a few games into the season but was reportedly a decent locker room presence for most of the season. I was fine with all those players not returning, but the signing of Metta and the re-signing of JR means we could use a stabilizing factor like Jared Jeffries.