Sreesanth may not change his behaviour.

Why should he?

talkative Sreesanth's on-field antics have only helped
him get better deals in the brand circuit. The Kerala pacer's endorsement value
has zoomed up from Rs 25 lakhs to Rs 40 lakhs after his fiery display in
Twenty20 tournament.

His antics may not help him in the field, but it will surely land him some fat endorsement contracts.

To speculate, Boost could sign him up for their ‘secret of my energy’ campaign or even Pepsi as a representative of GenX.