The 28-year-old striker has complained about playing him alone up-front in that game.
"Things were much better in the second half with Suazo alongside me. It's a mistake to go with one striker playing at home. We have to take more risks and have two players upfront," he said after the game.
The outspoken Eto'o was signed by Mourinho last summer from Barcelona and has been impressing the Inter faithful with his all-action display.
But he made his feelings known after Inter drew their third successive match in Europe and extended their winless streak to eight games in the competition.
Mourinho introduced Honduran striker David Suazo with his side 2-1 down at half-time, but the Italians could only salvage a point, a result which leaves them bottom of Group F. Promising striker Mario Balotelli was unavailable as he was suspended.