Gerrard has arrived in the West Midlands to succeed Dean Smith at the helm.
But he will not have the full squad who will tackle Graham Potter's side until late in the week.
He told Villa TV: “That's the priority. The main thing everybody should focus on now is the Brighton game.
“We have very little time to prepare in terms of having the full group.
“Thankfully we have some players on Monday, Tuesday and Wednesday that we can try and get a head start with and start getting some information over to them.
“Brighton will be a tough game.
“They are going well, they have got an exciting young manager and they are probably really satisfied with where they are right now.
“But it's a game we will go into and be aggressive and we will be looking to take maximum points for sure."
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!