This would be really great if it goes down as reported. I like Brogdon, but he didn't really complement this Celtics team. He was also a black hole while he was in there, and he took playing time away from White to close games despite White being the more effective player.
We clearly had a front court depth issue, and replacing Horford has been a major concern. Porzingis at 27 years old who can dominate in the post, shoot the 3 well, play solid interior defense and pass well for a big man addresses all of these needs. If he stays healthy, this is a legit long-term upgrade and could get us over the hump for banner 18.
Say what you like about Brad and the front office, but they wasted no time in bolstering the coaching staff and addressing the biggest roster need of this team.