Most devote an average of 15 minutes on a decision. Managers prefer verbal media over all others, i.e., written reports. When confronted with something new we build a theory of how things are going to wok out. The less we know the more we rely on complex web of meaning. Managers like informal and efficient information.
Managers prefer a conversation of phone call over a report.
Managers do not think in a linear fashion. They can bounce from one decision to another seamlessly. Managers want to know their source of facts. Where the information came from is less important than who presented the information. Managers need access to and time to predigest information.