On most NBA rosters you will find several solid players.
Most of them become role players while a select few become stars. The typical NBA star is not born overnight, they usually develop over time. Some of them are considered regular-season warriors—good enough to put up big numbers yet, not good enough to lead a team to the postseason.
The others put their respective teams on their backs and lead them into contention.
They are stat-builders who contribute mightily to the wins and losses of their team. These players are created in the regular season but, they blossom under the playoff spotlight.
Every once in a while, players with limited experience are thrust into roles they were not prepared for. Also, there are proven players who, for some reason or another, struggle while the lights become brighter.
These are two different types of players with one common goal: win at all costs.
Unfortunately, they could either struggle with their shots, with turnovers and/or trying to stay out of foul trouble. If their circumstances were any different, the landscape of the NBA Finals would be, too. The Heat won the title but, had certain players been able to have a better postseason, another team would have been victorious instead.