I think it would be cool/good if when looking at squads or when browsing through the characters if it would show you weather or not you have that particular figure or not. As for me, a lot of times when i am looking through the squads other people have made i dont remember if i have the figures needed to build that squad. For example looking at the following squad.

Cost Name You Have
49 Darth Malak, Dark Lord of the Sith 1
23 Jedi Crusader 1
23 Lando Calrissian, Hero of Taanab 1
19 Wookiee Elite Warrior 2
19 Wookiee Elite Warrior 2
19 Wookiee Elite Warrior 2
12 Antarian Ranger 0
12 Antarian Ranger 0
12 Antarian Ranger 0
3 Mouse Droid 2
3 Mouse Droid 2
3 Ugnaught Demolitionist 5
3 Ugnaught Demolitionist 5

And it would basically show you what you need to get in order to build that squad.
I know this might slow down the squad pages a bit but i think it would be worth it.