Tardiness goes down line. In print and video we used to be able to get away with it but digital suffers a lot more.
Each job needs a decent project manager. If it goes over then they need to report that it’s happening and what the case scenario will be. I emphasize that PM’s should have PMI certification.
I can’t tell you how many useless project managers I have worked with in large reputable agencies.
Advertising Agencies are the main culprits pushing out work to the line. Creatives stealing valuable time that could be well spent elesewhere.