AS FAR AS THE VIDEO SHIT GOES:
its alot different putting out a video on an indepedent: of course u wanna have your video come out a month before your album drops but it doesn't always work that way. when u have a song that picks up and starts drawing a lot of attention and getting a lot of spins then u r forced to do a video after your album drops. as a label your goal is to get the first week sales up as high as possible. then u look at the 2nd push and other strategies to boost sales. so to answer the question if there was one, yes its better to have a video before the album but its not bad to have one after to boost sales.