He's still looking to get outside position after working his step!
What you don't see today against southpaws are good boxers moving laterially and using a double & triple jab. Get the southpaw turning off his lead foot as you "slide to your left" with multiple jabs. This is a lost technique that was utilized in the USA boxing program under Pat Nappy and taught by all the Olympic trainers at the center in Colo. Spr. Leonard, Davies, Spinks and all the kids with good boxing coordination used thois basic technique against all competitors and it sets things up and is easy to teach what to look for while your doing it! Its not easy to counter because most fighters today don't punch "with" their opponents at the same time. Boxing has become a give and take tag game!!! Why I don't know, I guess the trainers don't teach countering the way we used to. Todays countering is off of an opponents shots and rarely at the same time!! Hell anyone can box...Tag!!!

As for the video its fine if you can get in on the guy as he adjusting. Other than that he's still looking for outside position. Ray.