DS org, decentralized or centralized?

Our company has 1000 ish headcount with 3 distinct business divisions, and has 2 DS teams, there are some chatters to merge the 2 teams into 1. I can see pros and cons to both merge and keep separate. Wondering how are other companies handling such situations? For smaller companies is it better to be centralized or decentralized??

business companies cons datascience decentralized merge pros teams