Frank Patrick spent the month of September writing about multiproject management (TOC here), but the last entry had me from the subtitle: "It's not how much you start. It's how much you finish."
Multi-Project Management and Organizational Effectiveness X
Too many organizations act as if by packing the pipeline and keeping everyone heavily loaded with work, a combination of filled queues and busy resources will result in rapid and reliable project completions. Instead, projects bump into one another, adding delays usually unanticipated in individual project promises, and resources burn out jumping between unfinished tasks that then further delay task handoffs and project completions.