This story was originally published on Marketing Dive. To receive daily news and insights, subscribe to our free daily Marketing Dive newsletter. NEW YORK — While the volume of work going through marketers’ in-house agencies has ebbed and flowed over the years, modern production demands — particularly the high volume mandated by social media apps like TikTok — are leading some organizations to think beyond an all-or-nothing approach to third-party marketing services partnerships. PepsiCo in June expanded ...