Complex sentence: At midseason, the Celtics traded Andrew DeClercq to the Cleveland Cavaliers for Vitaly Potapenko, but still struggled finishing fifth in the Atlantic Division with a 19--31 record, as fans began to get restless with Rick Pitino's slow growth.
Split into simpler sentences: At midseason, the Celtics traded Andrew DeClercq to the Cleveland Cavaliers for Vitaly Potapenko. However, the Celtics still struggled finishing fifth in the Atlantic Division with a 19--31 record, as fans began to get restless with Rick Pitino's slow growth.