Caitlyn is a Good AD carry then can protect it self and harass in lane, she is a little more of the attack speed and it would be good to give her that since her passive is attack speed based bonus damage, the faster you attack, the faster the bonus will come, this build gives her first in hand the small amount to attack speed she needs to damage an enemy by surprise, being bit weak then suddenly hit hard with crit \ pass.

pros - you will have to play little defensive at the lane start, which is mostly good anyway since a jungler lurks away

cons - the damage u will do on lane based on you'r skill of play, using ur skills and not relying on auto attack and auto attack will finish it off.