Probably so. With Jeremy Jacob's injury history and his less than stellar stats, his playing career is likely over after Oregon's loss to Washington in the NIT.
Jacob certainly got to see a lot of the country during his hoops-playing days. He played for two different high schools in Louisiana, graduated in 2006 and then in 2007 took a fifth year at a prep school in Virginia (Hargrave). Jacob then made his way to Athens, playing basketball for Coach Felton, but was sidelined by a stress fracture in his foot. Jacob ended up red-shirting the year that the Dawgs won the SEC Tournament (2007/2008).
The next year, Jacob was on the move. He transferred to Chipola College in Florida for the 2008/2009 season and played a year of juco ball. After Chipola, Jacob signed with Oregon for the 2009/2010 year. He contributed some, but in 2010, hurt his knee and had to have arthroscopic surgery.
Jacob played out his eligibility in three years of ball at Oregon, averaging 5.9 points per game for his career.
Although Jacob could perhaps play international ball, it is more likely that his travel as a basketball player has come to a halt. In any case, I wish him luck wherever his future takes him.