Arsenal chief Josh Kroenke admits defeat in the Europa League final forced an immediate change in approach to the summer market.
Kroenke admits losing to Chelsea and missing out on Champions League qualification forced a rethink.
Kroenke told BBC Sport: "We knew we wouldn't have Champions League football and that's what those type of talents are after. My main message to Vinai [Venkatesham, managing director] and Raul [Sanllehi, head of football] coming back from Baku on the plane and then throughout meetings all day the following day with them and Unai [Emery, head coach], was: 'Let's be aggressive and find out what's possible'.
"These guys went out into the market place and - through their contacts and our fantastic new team behind the scenes - were able to find some talented players who are really excited about playing for Arsenal Football Club.
"I think we had a very strong summer. We addressed certain areas on the pitch for this season and in the years ahead. We had certain age profiles that we were after. Without Champions League football we weren't exactly sure, but I encouraged our football operations department to be aggressive and when Arsenal Football Club knocks on a player's door it's a different knock.
"This summer, even though we weren't in a position of strength coming out of Baku, I think there were a few people caught off guard that Arsenal Football Club still has the aura that it does. We're excited to keep pushing that now and into the future."