FAYETTEVILLE, Ark. — With Moustapha Thiam now off the board to Michigan, John Calipari and the Arkansas Razorbacks are still in search of much needed big men. Recent signee Cooper Bowser is the only big man visitor publicly known of out of the transfer portal. At 6-foot-11, 215 pounds and wingspan of 7-foot-5, the Hogs are hoping he can be a solid piece of the rotation. However, the Razorbacks are still in need of a much thicker body in the post and pickings are getting slimmer each day. There is one Top 5 center left on every big board across the country in Massamba Diop (Arizona State), but even he seems like a reach at this point with a visit set at St. John's this weekend. Other notable big men off the board include Flory Bidunga (Louisville), Donnie Freeman (St. John's), Somto Cyril (Miami), Mo Sylla (West Virginia) and Eric Reibe (USC).…