Its not a coaching fail. The Celtics are not about to change their entire philosophy of how they play, just because they are in the finals. Just like brown isn’t about to become a consistent player because he’s in the finals. Teams do what they do. Show me a team that changed their entire way of how they played when they got to the finals. Show me one. I’ll wait. Teams might add a wrinkle here and there but at the end of the day, they are gonna play how they play. Substituting a player in and out of the lineup it’s not comparable to changing an entire team’s philosophy. Celtics are who they are…
But Boston has changed their philosophy, Brown, Tatum and even Smart and White have been driving to the basket more and more in these Finals to take advantage of smaller players having to guard them and it has been working for them, in that last few minutes they wanted to get into a 3 point shooting contest because Steph and Klay had hit some key shots. A team is dumb if they stick with their gameplan when they see that gameplan isn't working, it's what happened to the Rockets some years ago when they saw they weren't making 3's but continued to shoot them