Best suggestion is to do job in your field and prepare for CAT and target the top most colleges, this will be very beneficial as you will improve yoy profile and will have job experience also and meanwhile you are preparing for CAT if you will manage you CAT preperation and Job together it will definitely work out and lead you somewhere worthy and if you dont want to do job so it will be better to take the average college you are getting because you will have to face questions in the interview regarding drop in your career if you wait for one more attempt of cat without job experience.