My read also ... Sounds like a semi-disciplinary issue in re Sanders ... not necessarily a violation of team rules, but working on correcting some attitude or behavior of some sort.
Which makes more sense than some criticizing Jordan's "strategy" for player substitution.
But if Laurent is out also ... oh my goodness! If he is not available for the Maryland game (though RU has no shot in that game anyway), that leaves RU with just 7 healthy scholarship players, and literally NO back-up for Foreman and Lewis ... the 6'4" WF/G Grier becomes the back-up PF/C (which the 6'6" WF Laurent had been forced to be), and the 3rd tallest RU player available. Goode will have to play at least 20 minutes ... oh my.
Green Rice FIG: Jordan usually DOES sub relatively early, by the 16 minute mark. When Sanders was not inserted until the 12 minute mark (RU's 1st sub) of the 1st half, and the 13 minute mark of the 2nd half (again, RU's 1st sub of the half), my 1st thought was that the Sanders' benching was a sort of unannounced disciplinary thing ... which seems potentially confirmed by Jordan's post game comments. Not a team rules violation, but an attitude adjustment move.