The more time you put into the marketing effort, the more results you are going to get.
Those who put in under 15 hours a week are going to be frustrated, 'cause their competition is working on high priorities 40 hours a week, and there could be more that one marketer at a top company! Right?
Conclusion: You need to make a plan filled with top marketing priorities, but most importantly, you need to want to succeed as much as someone drowning wants to breath. Those are the best online marketers.
People only want the truth when the truth is convenient.