They need a better designer for the show. There are way too many lines that need to be animated and that's where the lack of money starts to show. Bruce Timm's DC look was so successful as it brought it down to what was needed for the character and cut the unnecessary bits. Before anyone jumps on me, I'm not saying the designs should look like Timm's work but Marvel needs to take a page out of the DC book (BTAS and JL) and balance the visual look of the show and push it in a direction and not just look so basic.