We deal with a managed hosting company that installed the brand new SQL 2016 ( without consulting us) on two new servers and create a DAG group. We then indicated that we did not to want jump right into SQL 2016 as it was just released in June. They insisted they could just uninstall SQL 2016 and install SQL 2014 on the same servers and recreate a new DAG. We are concerned we will have problems as a result of this and are asking for a clean reset of the servers from scratch ( OS rebuild etc). Does anyone have any opinions/experience?