The 51-year-old has further commented on the current squad.
"It's always very painful because whenever I meet people, they always talk about Chiefs. [Saying] No, you should come back and play for Chiefs," he continued.
"The players there now don't deserve to wear the jersey. So it's not easy being reminded that the club you played for used to win trophies.
"He just needs to add to the players we already have. Some of the teams competing against us have got depth, and we don't have that. If so and so is injured, we struggle a lot. I don't see any reason to make any changes," Mayo concluded.