The Bombers have two live picks in their possession and football manager Steve Alessio said the club needed to address its stock of tall players.
"We'll probably look at one more tall in the Rookie Draft and then we'll be looking at picking the best player available," Alessio told Radio Sport National on Tuesday.
That could come in the form of a ruckman, a key forward or a tall defender, he said.
"We reckon, in regard to the balance of our list, we need one good quality tall.
"We're running the ruler over a number of players at the moment, so that would be a priority for us."
Mature-age big man Michael Sikora is training with the Bombers in the lead up to Wednesday's draft and Alessio said he was right in the mix.
Sikora, 24 and 206cm, played with Essendon's VFL team in the 2013 season.
West Australian tall Darcy Cameron, 18, is also on the Bombers' radar, according to Alessio.
Cameron represented Western Australia in the 2013 NAB AFL Under-18 Championships and is considered a mobile ruckman with clean hands in the air and at ground level.
Twitter: @AFL_BenGuthrie