The focus is on delivering maximum strength in minimum time.
eek, there's a time and place for that stuff, but every session? sounds like a great way to screw yourself up.. depth jumps themselves are risky, but after heavy lifting -> very risky, if the muscles are fatigued at all, you can greatly increase the risk of injury to the joint surface & tendons.. if someone is going to depth jump/bound after lifting, they better have a ton of experience and be in excellent shape/100% healthy/well versed in those exercises.
Don't get two things confused (and Raptor's post did not exactly help here). There is strength training and there is the usage of techniques that are supposed to be stimulating your nervous system (STIM) so that power output can increase.
Doing 3 sets of squats with high intensity as well as volume (say >3 reps) and doing plyos after is a terrible idea. Doing plyos first would be better. Doing 5 heavy squat singles and continue with jumps or something similar is possible. Whether this would actually potentiate your explosive movements in the same session I tend to doubt, but it is at least not terribly stupid (like the first example) and it might work for a certain population of athletes. The latter is what you call complex training.
x2
plyos before strength training is fine, because one of the key concepts of true plyo/explosive work is to not train through fatigue + use optimal rest intervals between sets (complete recovery).. i've never had a problem with incorporating plyo/reactive/explosive work prior to squatting, with myself or people i've trained, in fact it usually helps the lifts that follow.
as for complex training, you really have to know what you're doing before you go that route.. for beginners and less experienced intermediate's, it's a horrible idea.. for advanced athletes it can be used effectively.. look at the verkhoshansky blog in performance blog section to see what some true complex training looks like.. search that blog article/notes for "Complex Method" or "Stim Method" etc.
if you at all lack the preparedness to perform ballistic/explosive work following heavy lifting, consider tendonitis an issue that will occur very shortly after incorporating that style of training.
so if you do plyo/ballistic/explosive work before lifting, just make sure you recovery optimally between sets, and don't train until your legs are jello, quantity over quality, then transition right into your heavy resistance training.
pc