Good teachers (in this case, coaches) are quiet, diligent, giving and find their success in the achievements of their students. They are comfortable with who they are.
Wonderful to read of how Hanuma Vihari called Rahul Dravid the day before his debut. That is what students do with good teachers. They share their joy. I am beginning to think Dravid's second innings might be as valuable to Indian cricket as his first.