I have a situation where I am being asked by my business leaders to use an existing concept and tag line on all new training materials that I produce.

The concept and tag line did not land in the business the first time around and I am loathe to brand anything new in the same way. 

If the business didn't 'get it' am I right to assume that it is 'wrong'?  Should I spend time trying to land it and make it clear or should I push for dropping it and insisting on products that do what they say on the tin?