 The reasons for this, according to James Lees-Milne, are that it was not given enough consideration by the Pope and committee because of the desire to get the building completed quickly, coupled with the fact that Maderno was hesitant to deviate from the pattern set by Michelangelo at the other end of the building.Lees-Milne describes the problems of the façade as being too broad for its height, too cramped in its details and too heavy in the attic story.The breadth is caused by modifying the plan to have towers on either side.