Unless he wants to lose everytime he faces someone above the level of a Hungarian taxi driver or Latvian security guard. He needs to change trainer. However he seems deluded enough and stupid enough to stick with his glorified cheerleaders and lose atleast another fight, that he shouldn’t be losing.
It's obvious Yarde isn't a born fighter. Genetically speaking he is below average and his saving grace is average reflexes for his snappy right hand. He needs Tunde to keep him confident as mentally he is a child not suited to fighting.