When comparing application-development...

When comparing application-development methodologies, we found that agile practices help control costs as well as delivery time. Banks that apply agile methodologies to less than a quarter of their projects deliver 70 percent of projects on budget and 55 percent on time. In contrast, banks that use agile in more than half of their projects deliver 96 percent of projects on budget and 79 percent on time.

How winning banks refocus their IT budgets for digital | McKinsey & Company