what to put in the front and back

zippty2001

ok i have a set of tsi400 a set of rta 11t non upgraded and a cs400 center that i just got. My q is what would be the best set up for this mix match of speakers rta in front tsi in front? would i be better off selling the rta or trading them for some m70s or somthing? i was going to get a set of rt1000p but did not like them any help would be good. thanks