Critics told Sri Lanka Mirror that Wijetunga need not be present at each and every game, as head coach Champaka Ramanayake is there.
A spinner, who is a member of the Sri Lanka team, said on condition of anonymity that not much advice is sought from a spin bowling coach during a game.
Therefore, it is pointless to take him for every game at considerable expense that will make him a mere passenger.
Meanwhile, South Africa is to send an emerging team to Sri Lanka next month, with the team totaling 20 members.
It has only five officials, which could be a good example for Sri Lanka, said a veteran of the game.