If you have a pokemon that's about to be knocked
out, check to see if it'll be worth retreating. If you keep retreating pokemon
that aren't of use any more, then you'll have a full bench of pokemon
that are nearly knocked out. It is alright to retreat a pokemon that's still
of some use. In fact, if a pokemon IS still going to be useful in the
future, by all means retreat it! But like I was saying, If a pokemon has used
up it's attack value, then it is best to let it take a fall.