To be a successful receivers coach, one must be able to help maximize the strengths and hide the weaknesses of his players. When looking at Harry, his game is not built around speed or sharp route-running. He is a big body with long arms and good hands. Tolbert had a similar challenge when the Arizona Cardinals selected Anquan Boldin and his 4.71 40-yard dash. We all know how dominant he turned out to be winning offensive rookie of the year.
A few years later, Tolbert landed in Denver he had the chance to work with Eric Decker, who'd done little as a rookie the year prior. While not overly fast (4.54), he had 6'3 size and strong hands. Decker immediately broke out with 612 yards and eight touchdowns in his second year.
Both these receivers have a similar playstyle to Harry and we wouldn't be surprised if Harry has his best season yet.