"My call at the end of the game was more conservative," Spoelstra said. "I drew something up to get him on the move and he said, ‘No, I want it for the 3.' So he overruled it and became a prophet."
Spoelstra's original blueprint had Bosh receiving the ball from Dwyane Wade at the foul line extended, the midrange spot from which Bosh led the NBA last season in field goal percentage and has made a good living. A successful shot would've tied the score and likely sent the game to overtime. Then Bosh did the math.
"I kind of figured that it was going to be a long 2, and I didn't want that," Bosh said. "I knew I would be open and have more space if I popped for 3. In that situation, I wanted to go for the win," Bosh said.
The way Bosh saw it, this was the game's decisive possession and his attempt would ultimately win or lose the game for Miami. That being the case, Bosh wanted a more rhythmic shot.
"My momentum was going to be taking me away and I was going to have to stop, set and there wasn't much time. I wanted to come kind of downhill a little, to step into it."
The play would begin with Wade on the attack. That's the Heat's preferred offensive mode when LeBron James is sidelined, as he was Saturday night after straining his right groin in an overtime loss at Sacramento on Friday. Guarding Wade was the Trail Blazers' rangy forward and best on-ball defender, Nicolas Batum.
"We had Dwyane on the move," Bosh said. "He was able to go right. I kind of set a little brush screen a little bit and popped back. He kept being aggressive. They put two on the ball."
This is the point where Wade had to make a decision. Had he continued on his path to the rim when he encountered both Batum and LaMarcus Aldridge (Bosh's man) in the paint, it wouldn't have been the first time he fought traffic to get a big bucket. Yet Wade knew the degree of difficulty would be high -- and he knew Bosh was open behind him.
"My mindset was to turn the corner and be aggressive," Wade said. "In my peripherals, I saw LaMarcus coming, or one of the bigs, so I knew I was going to have to make a tough shot. I saw Chris was open, so I just threw it back."
A 3-pointer with the game on the line and James resting isn't an unprecedented situation for Bosh. Last March in San Antonio, Bosh hit a go-ahead 25-footer from the top of the arc after hooking up on a pick-and-pop with Ray Allen. In a crazy triple-overtime win at Atlanta in January 2012, Bosh got the ball from Mario Chalmers on a pick-and-pop to tie the game in regulation.
On Saturday, Wade was the assist man, though he won't win any style points. The pass was treacherous, a knuckleball in the dirt that Bosh had to pick up on the short hop.
"He threw a crazy pass a little bit," Bosh said with a broad smile. "I'm not going to lie, but I was able to see it. Nobody was in the vicinity so I didn't have to rush."
Bosh's shot fell through the net and sucked the oxygen out of a stunned Moda Center with 0.5 left on the clock and the Heat leading 108-107.
"It was a cold-blooded 3," Wade said. "It was cold-blooded."
Incredibly, the Trail Blazers came within a whisker of winning the game when they orchestrated a beautiful inbounds play with that half-second. From the left sideline, Batum floated a perfect inbounds pass to Aldridge just in front of the rim. In one motion, Aldridge caught the ball two-handed and tossed it toward the basket, missing wide left as the horn sounded.
"It was exactly what we wanted," Blazers guard Damian Lillard said.
With time expired, the Heat erupted in celebration, one that was uncharacteristically boisterous for December, but given the context entirely understandable. Miami threw a game away in Sacramento on Friday. The Heat beat a team with the best record in the league Saturday on its home floor, all without James, who was on the bench in earth tones -- camouflage tee, tan jacket, brown leather pants.
And then there's Bosh, who finished with a game-high 37 points and 10 rebounds. Not only did Bosh hit a game winner, but he called his own shot from beyond the arc -- even as he was about to share the floor in a two-point game with the league's all-time leading 3-point shooter in Allen and the best slasher of his generation in Wade.
"He already hit two 3s," Spoelstra said. "He was feeling it. He wanted it, and as soon as he said it, I said, ‘Yeah, that makes sense.' It was much better than what I had planned."