I don't think its fair to the design firms who are working on this park to accept one of their designs and then take a design element from anothers and use it. It takes away from the integrity of the concept and the indivduality of all three designs. Stick with one concept and don't try to add other conceptual design elements from someone else and you will have a stronger more connected design concept and park. I'm not to sure James Corner is going to be too happy when his project isn't accepted but then has his ideas used in Tom Leader's winning design.