I think Lever going down presents Goodwin with an opportunity to try something different, similar to when we had to put T-mac down forward (AKA best thing that ever happened to us).
First Left Field Option:
Pederson at CHB. He is very good in the air, reads the ball well and contests. We have seen this at AFL and VFL level. He can't clunk them quite as well as Tmac, but he just needs get a fist in if playing down back. ALSO, he is a decent kick and makes reasonably good decisions. This means he would be more likely and able to pull the trigger on difficult but attacking kicks coming out of our backline compared to frost/smith (i.e. 45degree kick into the middle). Finally, he is an AFL vet and knows forward craft well, which could translate really nicely into shutting down key opposition players, as well as reading the play to come off his man and intercept. Tha man gives 110% despite being in and out of the side at the end of his career, he is a true servant of the club.
Second Left Field Option:
Weidermann as Lever replacement. I don't think weiderman is our best option, HOWEVER, it may be a worthwhile investment to developing him as a key player for future years. You could play him at CHB and let him learn by following around quality opposition players. Chances are he won't be a quality intercept player like Lever, but you never know. His skills are good though, and we know he is clean at ground level and is tall enough to go with likes of Cox.
For teams like richmond with one tall i think Hunt and Wagner will be best.