i think deep down werra is not getting EXACTLY what he wants from his soloists,if you take a deep look at it every single maison mere soloist(if you take out the 4X4 ones japonais and mbokaliya) are good looking confident on stage and dancing at times and the less good looking sent to mi solo by default
and certainly with for example ong bak or mayi ya kamba who was with bill the looks were there but he might not have felt the confidence he wants from them
I also feel the current guy lacks something. However much they tried to hype him, the fire is not there. In term of soloist supply I would think they are available probably recruiters try to place their own guys instead of looking for talent.
In his defense the current soloust has had a very short learning curve without an understudy