Darak, Fikko and others "big heads"

P5 is based on a"group of indicators" searching together an "entry signal" according with settings..
After we have the brutals SL and TP...
Why we hanve'nt a"group of indicators" looking for an "exit signal", even in an upper TM ?
Stupid question ?
(I know that simple question are sometimes the hardest to program...)