I got all these new players spending 0€, i just sold every player above 30 years, so theorically it could be realistic. Now i'm in the winter market of  the third season and i'm full of cash. 

GK 88 Leno. I got him for 0€. His overall talks himself.
RB 80 Karsdorp. He's quite good in defence, but very fast, strong and he's got a lot of stamina
RCB 86 Gimenez. Not very fast, but he's good with passing.
LCB 87 Varane. 85 pace and 89 defending stats.
LB 80 J.Lukaku. Same as Karsdorp
RCM 84 Milinkovic-Savic. He takes every header, he's very strong and he's always in the oppponent's box ready to take the cross. I love him.
CDM 86 Saul. Actually he's a box-to-box cm but i use him as a cdm because i like versatile players.
LCM 87 Isco. 86 finishing for a cm, 92 dribbling, 88 passing and i got him for free.
RW 85 Felipe Anderson. Same as Keita, maybe a bit slower and weaker but definitely more skillful.
ST 88 R.Lukaku. He's got 90 ss and 97 power, 87 finishing and 87 heading accuracy.
LW 85 Keita Balde. He's got something like 96 pace and 90 dribbling.

Then there are
CM 83 Cataldi, he's got 88 long passing and 82 short passing but there are already Isco, Sergej and Saul in front of him so unfortunately he's just a reserve.

LW 79 Kishna, he's a good reserve, good pace and dribbling.

CM 79 Kessie, i took him as a reserve, nothing else. However he's still very young and he can grow a lot. 

CM 83 Witsel, he's getting old but i still like him a lot. Paid 0.

GK 77 Strakosha, he's the second gk. He has grown up of 9.

LB 78 Tremoulinas, paid 0. 

CB 83 Koscielny, paid 0, he's getting old too but he still a decent player, and very fast though.