So what now is the club's strongest XI and bench? Lee Sobot puts together an idea of the best possible match-day 18 - with 11 days of the domestic window still left. Deals between Premier League and EFL clubs are permitted up until 5pm on Friday, October 16.
13. Diego Llorente
Some going when you have a £20m Spanish international on the bench and Llorente has not signed to be a sub. Huge competition to Koch and Cooper at centre-back but also the prospect of a back three when needed. Picture by LUFC.
14. Pascal Struijk
The other main centre-back option who can also play in the holding midfield role. Inexperienced but highly thought of by Bielsa and could become anything given that he is still only 21 years old. Photo by Phil Noble - Pool/Getty Images.
15. Gjanni Alioski
Alioski can play left back or on both flanks but Jamie Shackleton is similarly versatile and crucially can play centre-mid and don't forget Adam Forshaw if and when fit. And then there's Ian Poveda. Tough one. Photo by Phil Noble - Pool/Getty Images.
16. Raphinha
Exciting £17m deadline day recruit from Rennes and the 23-year-old Brazilian winger looks a real box of tricks. In the Bielsa way, sure to start out from the bench but for how long and can he play at 10? Photo by JASON CAIRNDUFF/POOL/AFP via Getty Images.
17. Pablo Hernandez
Feels disrespectful putting the Spanish magician on the bench and El Mago will surely start plenty of games when fit. But over and above Rodrigo? Maybe either/or unless Bamford is out. Photo by JASON CAIRNDUFF/POOL/AFP via Getty Images.
18. Tyler Roberts
Has been starting as a no 10 of late and can play anywhere across the front line but probably best upfront. Still only 21 and another who will be looking to become a guaranteed starter. Photo by JASON CAIRNDUFF/POOL/AFP via Getty Images.