Marcelo Bielsa takes responsibility for Leeds United's League Cup exit to Hull City
The Tigers were unlucky to be drawing 1-1 at full-time, having led from the fourth minute to the 94th, before Gjanni Alioski's equaliser.
When the game went to penalties Hull were 9-8 winners, Alfie Jones beating Kiko Casilla to end the contest.
Former Leeds man Mallik Wilks put on an impressive display on his return to Elland Road, giving Hull a platform to build attacks, winning aerial balls and bullying defenders.
Bielsa, who selected youngsters Charlie Cresswell and Leif Davis at centre-half, with Oliver Casey as central defensive midfielder wasn't sure there was anything he could have done differently to combat Wilks' presence and admitted his team, with 11 changes, lacked fluidity.
"I don't know if there is any direct recipe to stop the performance of the player," he said.
"It wasn't a very good game from our team. We didn't defend well or attack well.
"Collectively the team didn't have coordination. We didn't win our duels. We weren't progressive enough with our passes.
"The players didn't gel together very well. This is the responsibility of the coach and as a result I feel responsible."