Sami Hyypia may have difficulty following the customary approach of fielding a different team in each half when Albion open their pre-season programme at Lewes tomorrow.
As things stand Hyypia has a first team squad of 18 players.
Two of those, injured midfielders Andrew Crofts and Dale Stephens, are not available to the Seagulls' Finnish boss for the game at the Dripping Pan (3pm).
Hyypia may need to bolster numbers when Albion go to Pinatar in Spain next week for pre-season bonding and matches against Partick Thistle and Real Betis.
He can do that by dipping into the development squad, based nearby at La Manga.
Albion have until the end of August to get their first team squad in place in terms of permanent transfers, although they can make loan signings after that.
They will have played their first five matches in the Championship and the Capital One Cup tie at home to Cheltenham by the time the transfer window closes.
Hyypia will want the group completely assembled well before then, ideally before the opening visit from Sheffield Wednesday on August 9.
There are gaps to fill and just over a month in which to fill them.
Are you worried about Albion's lack of transfer activity, or are you confident the squad will come together in time?
We'd love to know your thoughts.