some drills for quickness agillity and speed

Quoting REAL PERSON
Can you email me and my son some drills for quickness agillity and speed. He is 7th grade, he is a wide receiver ,but he runs like a tight end . I need some drills and some advice so I can help him get better at the sport. He really needs to work on his quickness.
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I would jump rope 15 minute per day....
Do the 5 dot square drill...4 dots for corners and one in the middle..space
the outside corners about 3.5 feet apart...see how many he can do in a 60
second time frame......front outside corners to middle to back outside corners
and back...
Do some hop drills font and back and side to side...jumping over something
about 1.5 feet high and wide....