Cat then gradually moved to the hutch and so did we (still doing training). Most of the time she did concentrate on me but when the cat was moving Sadie would just stare at her, she did whine a little.
Should I be concerned about her staring? I couldn't get her to look away from her with any commands.
Yes, you should be concerned, but it's definitely not panic time! Progress has been made, and it's not going to happen over night (as you have discovered!)
What I quoted and bolded ... THIS is what you need to work on. She's made progress, and so have you and that's awesome ... but you need to break the focus so it doesn't go to the "next level" (chase / pounce).
Now that you know you can't YET stop her from staring, work on it without the cat and get a solid "leave it, look at me" whatever you are working on, and then go back to it with the cat.
Kyleigh LOVES to chase my cat and London (who's 14) won't stand his ground. I didn't let her "chase" him until she had a solid leave it ... and now they have some fun running around the living room. London also likes to teach the heck out of Kyleigh, so I keep a very close eye on them to make sure that it doesn't go over the top. And London has lots of "high" places to go to where Ky can't reach. They are NEVER left alone unsupervised.
The other day Kyleigh was laying on her dog bed and London pranced over to see what the dog was doing ... he sniffed her tail, her back legs - Ky's watching, but hasn't moved yet. London makes his way up closer and then he's sniffing her nose. She doesn't move and then just as London's about to move on she jumps up and holds him down with a paw and suddenly London is getting a bath. I have to admit it was pretty funny, but I don't think the cat appreciated it so much. I was able to call her off him, and the cat took off under my bed LOL
I got Ky at 9 weeks. She pretty much ignored the cat until she was about 7 or 8 months old and then decided she was going to chase it. (This was the same time she decided that my parrots would be fun to chase too!)
The next couple of months were difficult in trying to manage dog time / parrot time and cat time.
You've got lots of great advice and you're definitely on the right track! Just a bit more training, practice and patience, and you'll be there!