> Abundance of caution -> Circumspection
To me 'Abundance of caution' euphemistically implies being rather too cautious
> ASAP -> Betimes
ASAP is in such common usage it hardly qualifies as jargon at all.
> Change agent -> Efficient cause
To me a change agent is someone else you bring in to be a positive voice for change, often because the person wanting change is outnumbered by naysayers. It is funny how when the consultant says exactly what you were shot down for saying it carries more weight, for instance. I think the agency is important in the meaning.
> Holding pattern -> Keeping watch
I don't think these mean the same thing at all. This is a mixture of aviation and military metaphor. A squadron of jets ready to bomb a target, but told to delay, might fly a holding pattern, ready to attack when told without further preparation. A sentry back at base is keeping watch, but would require significant preperation, and a long walk, before She could mount an attack on an enemy base. Imagine a product launch gets pushed back a few hours, and you want the web developers to pause, but not move on to other things, that is analogous to the jets, but not the sentry.
Likewise, to repent suggests a level of reproach or regret not indicated in a pivot.
Streamlining an aircraft, by adding retractable landing gear for instance, can make it rather more complicated not simpler. It may make it faster and more manoeuvrable whilst giving it greater fuel economy. Adding an ERP at a company may make it much more complicated (even though that complication is rather hidden from many users) but it may also allow for lower inventory by allowing advanced JIT or Throughput Accounting techniques. That is a streamlined operation, not a simpler one. I'm sure some people misuse the analogy to say 'Streamlined' when they mean, 'we fired half of them', but that is no reason to restrict it.