But how does John Mousinho play it as Luton Town provide the lunchtime opposition at Fratton Park?
There are injury issues to contend with, while a number of new faces after still getting up to speed with the relentless demands of Championship football.
This is how we think the Blues will line up against the side relegated from the Premier League last term.
13. Sub 1 - Jordan Archer
Norris was perhaps a little surprisingly favoured against Milwlall and there could well be more competition arriving for the back-up keeper. | National World
14. Sub 2: Zak Swanson
Really impressed in three different positions on Tuesday, but probably won't be enough to see right-back continue. Photo: Jason Brown
15. Sub 3: Terry Devlin
Looked like he'd scored on Tuesday with everyone - including himself - believing it to be the case. Could be useful in a variety of positions bringing energy to the table. Photo: Jason Brown
16. Sub 4: Ben Stevenson
Never has a bad game - with Tuesday another example. Could well find himself on his way before the close of the window, however. Photo: Jason Brown