Is Rex Tillerson's Way Of Running Secretary of State Effective?

According to Politico, Secretary of State Rex Tillerson has been working on mundane tasks such as fixing the email system and fiddling with you org chart instead of focusing on bigger diplomacy matters. According to a leak document out of the secretary's office, Tillerson uses a 25-person Policy Planning office as the main form of making day-to-day decisions. The flow chart attempts to streamline the making of foreign policy, making the role of Policy Planning the most important.