Spring-sport athletes at Penn had been surveyed, Calhoun said, and about 20 had been interested in staying on to play next spring, while the rest were looking to move on, many with job offers already accepted. With this decision, “probably 10 or a dozen,’’ Calhoun said, might think about still trying to stay on, including a “small handful” who might look at taking some time off, dropping current spring classes to remain undergraduates.