The Scotland international joined the Hammers from Hull in January but struggled to establish himself at the London Stadium, having previously been a star for the Tigers.
Despite preferring to play on the right or through the middle, Snodgrass often featured on the opposite side following the departure of Dimitri Payet to Marseille.
The 29-year-old joined Aston Villa on loan last week and has piled further pressure on the under-fire coach by admitting he was often left clueless by the Croatian’s instructions.
Speaking on international duty, Snodgrass said: “I was coming on against City and he [Bilic] said ‘Where do you want to play, on the left or right?
“I thought ‘You have just signed me and I have played on the right or behind the striker at Hull City all season’.
“That was my debut and alarm bells were ringing right away. I found it very strange and I realised from the off that it wasn’t going to happen. Every time I played I was on the left. I don’t know why he did it.
“I hate that position but when you are Scottish you are brought up to play anywhere. It’s fine to play for one or two games but you need to play in your right position, especially on the back of scoring nine goals for Hull.”