De Silva said after the visitors' improbable escape with a draw at Lord's, they should bring in Jayasuriya to strengthen the team.
''I hope there is now enough confidence to play a more balanced side. Perhaps Jayasuriya and Lasith Malinga coming in could help. My theory would be to play the best possible side,'' De Silva told Daily Telegraph in an interview.
De Silva, who is covering the current series as commentator of Sky Sports, also predicted that the Lord's draw might spur his countrymen into better performance for the rest of the series.
''The boys did a wonderful job to dig themselves out of a no-win situation at Lord's. It will give them that much more confidence to go out and make this series a really good contest. I think the fact that they were written off before the series started, and that they had a young side which came through a tough Test, looks good for the future.''
Jayasuriya, who was not in the original touring squad, was called out of retirement controversially at the request of the new chairman of selectors Ashantha de Mel. But the left-handed opening batsman was overlooked for a warm-up match against Sussex at Hove.