McGeechan has named an unchanged set of backs from the team that beat Bristol last Friday, though there are changes in the pack.
In the absence of Raphael Ibanez, on international duty with France, Joe Ward gets his first run out with the 1XV, having impressed in an 'A' XV game against Cambridge University on Monday.
Jon Dawson is rested, making room for Peter Bracken to come off the bench, where he is replaced by Alistair McKenzie.
Also on the bench is replacement scrum-half Warren Fury, recovered from a back injury and named in the 22 for the first time this season. Simon Shaw is also named, having made a good recovery from a lower back problem that saw him ruled out of contention for England selection this weekend.
On his team McGeechan said, "Once more we have a healthy mixture of youth and experience in the 22 this week.
"Joe Ward is getting is his first run out in the English Premiership, while Tom Voyce is making a record breaking 57th successive start, and both will be equally keen to do well against a skilful Saints side. It's also good to have Ayoola Erinle and Tom Rees getting back to full match fitness and finding their form again after injury.
"The international season is a great opportunity for new and experienced players alike. The players have been working together very positively, and got an important win last week. It's essential that we maintain that positive input from everyone in the squad and keep the momentum going, especially with our internationals out."
Wasps team to face Northampton Saints is:
15 James Brooks 14 Paul Sackey 13 Ayoola Erinle 12 Stuart Abbott 11 Tom Voyce 10 Alex King 9 Eoin Reddan
1 Tim Payne 2 Joe Ward 3 Peter Bracken 4 George Skivington 5 Richard Birkett 6 John Hart 7 Tom Rees 8 Lawrence Dallaglio (c)
16 Ben Gotting 17 Alistair McKenzie 18 Simon Shaw 19 Mark Lock 20 Warren Fury 21 Rob Hoadley 22 Jeremy Staunton |