The Tottenham Hotspur boss will be looking to impress against his former side.
Reunions can be a handful.
Just as easily, though, they can go wrong - and Pochettino will be wary of that happening this weekend when his Spurs side meet Southampton again, only this time at St Mary's.
For there's more than just pride at stake for the Argentine when he takes on the Saints. He has a point to prove. Not to Southampton fans - but to those of his current club.
Indeed, after Pochettino lost out to Sherwood so meekly, the disappointment was palpable at White Hart Lane. The Tottenham coach was tactically outwitted - and not by any genius, by simplistic but effective methods that were always going to be obvious: get the ball to Christian Benteke, pack the midfield.
And that once again exposed Pochettino's biggest perceived weakness this season: a lack of tactical nous.
The Spurs boss can't afford for the same to happen again at Southampton. Imagine the feeling should Pochettino be beaten by both the man that he replaced and the man that replaced him in a matter of weeks?
It's not a question of the Argentine's long-term future, of course, this is nothing to do with his job security at Tottenham but more to do with his present. After another disappointing season at the Lane, every game becomes a mini-test in itself. This is one Spurs fans will no doubt hope Pochettino takes seriously.