He's solid, proper tough, not sniper tough, good overhead as well, and a solid kick, within his limits.Makes a lot of sense.
Broad's GPS numbers are consistently very strong so he has similar running strengths to Ellis.
He already provides defensive cover while his team mates spread so the only question will be his ability to provide outlet and use the ball well when required.
Certainly ticks plenty of boxes.
It can't hurt to develop him a little more, more strings to his bow the better.