I would expect a new creative team to be brought on if there was a mandate on high to produce alternative programming for Trek fans who don't like Discovery. If creative decisions made in Discovery are a function of the creative team, creating another show around Picard will still likely mean a lot of the same questionable decisions will leak into that show. A casting decision by itself won't solve that problem.
If people aren't subbing to CBS All Access because they don't like Discovery, producing another show that shares all of the stylistic hallmarks of Discovery won't be enough to bring the stragglers in.