I think this a good idea, look up Bulgarian complex training and you'll see that they used these techniques quite often. Over a macrocyle, your progress might stall out, but I think it is definitly a great method to use for a few weeks to a couple of months.
You might even want to doing a set of heavy lifting followed by a set of jump squats (with proper rest) and repeat. There have been studies that have shown a potentiating effect between the two. I think it does depend on your qualification level (that is, more effective for intermediate athletes than elite), but I'm a pretty good athlete (collegiat volleyball player with 40" vert from an approach) and I can definitly notice a potentiation effect when I use it. The key is to keep the weight down on the jump squats. Weight is unimportant, what matters is that you are bouncing off the floor and really training that reactive quality.