We reccomend you this new post of Harvard Business Review about how priorize projects on an organization and about how manage with a lot of projects that are not allineated and they consume more resources than necessaries or that overgate the teams of work, concluding why happened these and what you do about for resolve it.
As to say Rodrigo Baccaro in her post blog it is interesant see how the technology trough of tools of following are becoming essentials and necessaries for the identification of an initiatives, making these execution from close of the same for could have in hand information that allows make desitions when its desires priorize.
We recommend read this article to whose found with a big quantities of projects in hands and are concient that they need project management tools to not loose the destination.