Agaves get a good root system going. I put them in a deeper pot. I only keep them in pots until they are large enough to go outside. This is a large growing agave. I can't imagine growing it in a pot inside. This is out of my league or zonal experience. I have only the experience of growing agaves this size outside. I imagine that one could burry it deeper as long as the crown is all above. That is a far ranging agave when it is happy. Arms flung out all over the place.

Rocks to support the stem rather than potting media, no matter how gritty, might be better. Also try to correct the cultural practices that is causing it to lose leaves.

Thanks to both of you for your help. That's what I'll do, put it in a deeper pot but the top couple of inches can be rocks for support. Yes it is a big sprawly agave but thats why I like it even for inside... it's not my biggest agave. It'd be nice to be able to have them outside but I only have a couple of agaves that are hardy enough for that. I'll try hoovb ;)

Logan, I'm not very experienced with this Agave, but when my Agave (pictured) gets "leggy", I remove all the bottom dead leaves, whack off the bottom leaving enough to plant and I have a new plant. The picture presented here of my Agave was cut this past summer. I will have 3 or 4 years before the bottom dies out and the pot is filled with roots and I will repeat the process.

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Thanks Bikerdoc, good to know. It looks great. I wouldn't have wanted to whack off all of the roots it had grown but the stem pretty readily reroots it seems.

Unfortunately, I don't have pictures of what I do, but when I re-pot my Agave, I remove all of the old roots and lower leaves exposing the new stem. I cut off all of the lower stem leaving just enough to replant; about 3" or 4". I then allow it to callus for at least 10 days or longer before re-potting. Like other succulents, new roots grow and the plant looks much better and seems to have a nicer head.