He should have played keep-away from everyone, just dribbling as far away from the defense as possible, running more time off and eventually getting fouled (as the team's best on-court FT shooter). It'd have taken another second or two for anyone to catch him, and then he'd have at least hit one of two. And the Bulls would likely have been in better position to defend (if he hit the second). Just a horrible, horrible decision. It's amazing how one single decision can so dramatically swing the tide of the game that late.
The tough part is that I really think this team had a chance to win it all if not for the injuries. Their bench was much better this year than last year, they vastly improved at SG, Boozer was healthier, and Deng, Noah, and Rose had a year's more experience with Thibadeau. Now, I worry that the door is going to close. Next year is a question mark with Rose's injury. And an ACL tear for a player as reliant on quickness and explosiveness is a reason for concern long-term. They're so heavily invested in two guys (Boozer and Rose) whose injury history becomes a long-term concern. I suspect Boozer will eventually be amnestied after next year, and the Bulls will then try to reload with another star. But what was potentially a Finals contender for this year and the next couple of years now is very much in doubt.