I completely agree with this, except I feel that Watson should be fined some amount as well. I wouldn't mind seeing Gambhir fined 60-80% of his match fee since physical contact has no place in the game of cricket. However, Watson should be sent a strong message that his behavior is absolutely inappropriate and he should think more about his lack of talent, instead of abusing the Indian batsmen over and over again. This must be done with a warning and a fine, and followed up with a suspension if he doesn't cool his hothead.
I'm not sure you would call those "tactics". It sounds rather silly to me, especially since the pace bowlers have been kept at bay pretty easily. Ponting is, quite simply, not willing to change anything up.