Heat coach Erik Spoelstra, a two-time NBA champion, is on record as declaring it would be “ridiculous” for anyone to speculate on the job security of Pacers coach Frank Vogel.

Actually, that position has been on the record since 2014.

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It seems no less relevant today than it did then. One could have unearthed that comment on just about any day in the past two years and found it useful, from one side or the other. Vogel is in his fifth full season as the Pacers’ head coach, and that is a long time to last in one of the least secure jobs on planet Earth.

It’s a job Vogel should hold well into the future, if anyone’s been paying attention.

Vogel’s position may seem even more tenuous following his performance late in the fifth game of the Pacers’ first-round NBA playoff series against the Toronto Raptors. Although the Pacers are the No. 7 seed in the Eastern Conference, although they were playing on the road and owned a 15-point lead with less than a minute left in the third quarter, they blew all of that advantage and more in a game that might cost them an extraordinary series triumph.

Not only did Vogel ride with several reserves while guard Rodney Stuckey missed two shots, two free throws and twice surrendered the ball on turnovers and wing C.J. Miles missed another two shots, but the coach also did not call a timeout – with plenty available – until the Raptors had tied the score with 6:31 to play.

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These might have been the worst 5 minutes, 29 seconds of Vogel’s coaching career.

Ah, maybe that’s not quite right.

The Raptors came out of that timeout and got 3-pointers from guards DeMar DeRozan and Cory Joseph while the Pacers were losing the ball on a charge, a too-quick 20-footer by rookie center Myles Turner, a shot-clock violation and a missed 3 from Monta Ellis. At that juncture, Toronto had run off 23 points to Indiana’s two in building a six-point lead.

So it was a terrible 8 minutes, 34 seconds.

Instead of taking the court Friday night (7 p.m. ET, ESPNews and NBA TV) at Bankers Life Fieldhouse with a chance to clinch the series, the Pacers will be playing for survival.

And if one wants to distill the whole of his head-coaching career to that one stretch of horrendous basketball, well, of course the Pacers would need a different coach. However, the constant demand for change for its own sake is how erratic organizations often undermine their own progress.

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Consider where the Bulls stand today, a little less than a year after firing Tom Thibodeau. Over five seasons, he won as many as 62 games in a season and never fewer than 45, though his most gifted player, Derrick Rose, missed a combined 147 games during the coach’s tenure and the health of standout defender Joakim Noah also declined.

In his final season, Thibodeau led Chicago to a 50-32 record and a first-round playoff victory. He was fired because of philosophical differences with management, but in the Bulls’ first year under Fred Hoiberg, the Bulls won 42 games and missed the playoffs. Hoiberg, too, had a roster impaired by injuries to man

y key players. But this example does demonstrate that change for the sake of change can fail to produce the desired, well, change.

If the Pacers had a core of outstanding young players waiting for the proper vision and guidance to be applied, and if the current coach demonstrated an incapacity to provide it, then a change for the future might be logical.

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Indiana has two outstanding players around whom to build: rookie center Myles Turner and star forward Paul George. The remainder of their roster is mostly veterans cycling through to fill specific needs, some better than others — and almost all pretty poorly as Tuesday night advanced in Toronto.

Pacers president Larry Bird knows that. Bird hired and groomed Vogel and has supported him through past trials. In 2014, when Vogel was again on the hot seat for only winning 56 regular-season games, only locking up the No. 1 seed and only taking the two-time defending champion Heat — then with LeBron James — to six games in the Eastern Conference finals, Bird gave Vogel an extension as a show of confidence.

The head coach’s job with a professional team is to get the most possible from the players assembled before him. It would be pretty much impossible to find a Pacers team Vogel has coached that has not maximized its ability. When they had a deep-playoff group, they reached the 2014 Eastern Conference finals. When George’s injury derailed the follow season, Vogel guided them to within sight of the .500 mark.

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Even in pushing Toronto as hard as they have — never mind that they allowed that enormous opportunity to lapse — the Pacers have done more than could be reasonable expected of them.

If Vogel is given some serious pieces to go with George and Turner over the next few years, he has the ability to do something special with them. It may not be ridiculous to discuss whether he should remain as coach, but it would be reckless to move him out.