Claudio Bravo (GK) is 41. Alexis Sanchez 36. Vargas is 36.
They lost Auturo Vidal, Beausejour and Gary Medel, who were stalwarts in midfield.
They are in a transition phase but no real international stars to replace those guys.
That hard to work thru. Still competitve in a sense, but nothing like they were 10 years ago.