Georgetown guard Eric Floyd is expected to be a middle to low first-round selection in the National Basketball Association draft, according to two of the league's most respected evaluators of personnel.

"He's right in the middle of the first round," said Red Auerbach, president and general manager of the Boston Celtics. "If a lot of guys come out (as underclassmen), he could move back three or four spots . . . My hat's off to John Thompson. He's brought him along perfectly."

"So much depends on how Floyd finishes in the NCAA and postseason (all-star) tournaments," said Stu Inman, vice president and director of player personnel for the Portland Trail Blazers. "I would be surprised if he got out of the first round."

Another scout, who works for an Eastern Conference team and requested anonymity, was not as impressed with the 6-foot-3 Floyd: "Low second, or high third round," the scout said. "He's no sure bet to make it. He's point-guard size, but he's played the second guard in college."

A survey of NBA personnel types left these impressions of area players:

Maryland center Charles Pittman, before breaking a bone in his left foot Tuesday, was seen as anywhere from a second-round (by Auerbach) to sixth-round pick . . . George Mason center Andre Gaddy is known throughout the league, mainly because of his size, but must show in all-star games that he has the hands to be selected as anything better than an afterthought . . . James Ratiff, Howard's 6-9 forward, hasn't attracted much attention . . . James Madison forward Linton Townes is a likely third- to fifth-round choice . . . Most NBA types are following the progress of UDC underclassmen Earl Jones and Michael Britt . . . Georgetown forward Eric Smith plays good enough defense and has the size and quickness to be a midround pick as a second guard . . . Vir-ginia guard Jeff Jones likely will be selected in the third or fourth round . . . The obvious: Virginia center Ralph Sampson will be the top pick if he decides to bypass his senior year.

Nationally, the pro scouting services list Scott Hastings of Arkansas as the top senior at both center and power forward.

Auerbach, a George Washington alumnus and D.C. resident, also plugs area colleges: "The basketball is good. There are a number of good teams and the local kids are good. More of them should stay in the area. They're finding out that the grass is not greener elsewhere. They're finding out that if they stay in their hometown, people remember them, even if they don't make it in the pros."