No, Decker knew the ship better than Kirk, but Kirk knew the crew and had the confidence to take risks and deal with "the unknown" far in advance of what Decker demonstrated.
I think the writing does a nice job showing this, as Decker's decision making is often questionable after the wormhole incident (unwarranted gamble, phasering the tractor beam, etc). Also, would he have been able to separate his emotions involving the Ilia Probe enough to have the useful insights Kirk had on how to "use" the probe to potentially learn more?
Kirk was the right guy.
I think the writing does a nice job showing this, as Decker's decision making is often questionable after the wormhole incident (unwarranted gamble, phasering the tractor beam, etc). Also, would he have been able to separate his emotions involving the Ilia Probe enough to have the useful insights Kirk had on how to "use" the probe to potentially learn more?
Kirk was the right guy.