(Centerville, IN)--The shake-up of the Tri Eastern Conference continues.  Wednesday night, the Centerville-Abington School Board voted to leave the TEC to join the new Eastern Crossroads Conference.  Athletic Director Clay Bolser said Wednesday night that changing demographics is one of the primary reasons for leaving the TEC.  "We're going to be in a situation where, possibly at the next re-classification, we could be 3A.  And then the Tri Eastern Conference would be left with one 2A school and the rest 1A schools," Bolser explained.  The board’s vote Wednesday night was unanimous.  Centerville joins Northeastern in the new conference after Northeastern voted to leave the TEC earlier this month.