 Nyora kuenderera mberi kweiyi ndima - Mushure mekupedza mwaka mina neBucks, akatengeswa pamwe naErvin Johnson kuenda kuMinnesota Timberwolves mukutsinhana naJoe Smith naAnthony Peeler zvichitevera kunyorwa kweNBA kwa2003. Cassell akafarikanya mwaka wake wakabudirira zvikurusa somunhu oga gore iroro. Akanyora 19.8 points pa 49 shooting, 7.3 assists uye 1.3 steals mumaminitsi 35 pamutambo pagore. Akatumidzwa kuAll-NBA Second Team uye akavhotera mu2004 NBA All-Star Game. Cassell, Latrell Sprewell naKevin Garnett vakaumba chakanzi nevakawanda chikwata chakanakisa muNBA mwaka iwoyo, vachipfuura maSacramento Kings, maDallas Mavericks, maSan Antonio Spurs nemaLos Angeles Lakers kuti vave nenhamba yekutanga muWestern Conference, vaine rekodhi yefranchise-yakanakisa ye5824. 