I’m not sure what you mean with ‘technical work and drills’, but if we’re talking actual jumping, then it’s questionable if that’s to be regarded as low-intensity.
I think it can be a good idea to monitor how they seem to respond to tempo, mixture of tempo & circuit or just circuit. Perhaps it would be a good idea to create something like the following routine:
1… Warmup as a miniature tempo; something like 4-8x 100m on grass with a walk between runs.
2… Low-intensity drills mixed-in with a circuit session.
It’s also possible to end a technical work/drills session with a miniature tempo routine. Can you show the kind of microcycle setup you use, so that it would be easier to see your question in context?