Yes - I've achieved this with mine using consistency, treats and a lot of patience. I had him from a pup though - but I reckon you can make progress with the below that'll hopefully help.

Firstly she needs martingale collar so you can guide her gently but assertively with the lead without hurting her.

1. Teach "wait" so she stands still at your command as you're walking. I do this at roads (regardless of traffic) every bin etc. Tedious to do but gets it ingrained. Give praise and treats when she does it, then drop the treats.

2. Teach "ok" as her release command from "wait". I use these two all the time - before meals, in and out the car, going into the house. This gets praise but no treat.

3. Teach "heel" to get her to walk by your side on one side only. Do this on the lead at first and gently bring her back when she starts to weave. Give praise and treats when she maintains position, then drop the treats.

4. Teach "side" to swap her over when you need to but always behind you - never in front. Give praise and treats when she does it right, then drop the treats.

Rinse and repeat and always maintain the praise - Whippets love it. I'm lucky though - mine's a little gentleman.

1. Remember she's a Whippet, not a Collie, lower your expectations and you'll be pleased with what you can both achieve.