I think perhaps that would make Juju a good fit actually. A different type of target to work the middle of the field and do the dirty work. Variety of talent is a good thing. Teams can take that away without the threat of underneath production. Have a whole WR corps of undersized speedsters isn't necessarily a good thing.
dolphins seem to be making it work...hill, waddle, sherfield, wilson jr...i think all of them run a 4.4 or better...then you have mostert running a 4.4 or better and i think even gesicki is one of the faster TE's in the league...
having different types of targets is good and all but when it comes down to it, if there is a speed threat you need speed to match or you'll have to double or bracket or run zone only...when there are multiple speed threats, unless your defense has speed to cover its only a matter of time before players get open.