I have hung buzzbaits in mine and even Chatterbaits by their hook. You could probably hang jigs in it if you wanted although big bulky heads might take up more space. The blades on a buzzbait will definitely expand each pocket a little more as you could see from the over head shot a few pictures back.
I will even throw in a pack of trailers, extra skirts and such in the spaces found outside the dividers in the box. You could take a few folders out and have enough room to carry some extra components in a bag as well and have a complete spinnerbait system in one heavy duty box.