Albion boss Steve Coppell is contemplating a tactical change for tomorrow's FA Cup clash at Norwich.
A combination of the competition's sudden death element and wholesale alterations by the Canaries could mean Coppell switching to his favoured 4-4-2 formation.
That would bring into contention the likes of Paul Brooker and Gary Hart for a return to the starting line-up in the third round tie at Carrow Road.
Coppell has operated with three central defenders since the League draw at Wolves in early November.
Norwich switched to a 3-4-3 system at Grimsby following the Seagulls' surprise 1-0 win in Norfolk in the First Division on Boxing Day and that may force Coppell's hand.
He said: " They did make a lot of changes after we played them and they did play a different formation.
"I am perhaps a little bit more tempted to be a bit more carefree about it. I might be forced into 4-4-2 anyway, because if they play 3-4-3 with three forwards I can't play with three defenders.
"Whenever we have played against a front three, like against Derby and Leicester, we have played with a back four so chances are I might go with a back four.
"We are not strong enough to dictate the style, we will react to their shape. The good thing is he personnel here are flexible. We can adjust halfway through a half and it's not a big issue. I like my teams to have that quality."
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