I think his aggression is only thing that make him look like a bowler.
Sree is a very good bowler. Its just that he tries too much. At times, he could possibly bowl 6 different deliveries in an over. He is too hyper active. But with some mentoring, he can surely be a very good fast bowler for India.
Imagine Sreesanth and Ishant Sharma with their pace of 140+ kph being India's future spearheads with Irfan and RP lending variety and back up.