Martinez said: "Paul knows exactly what he's doing and has got a great group of players.
"We've been in a similar situation. When you change things round and bring in different ideas and young players, you need to be a little bit patient.
"Villa have let in 15 goals but before that they went to Anfield and looked a very strong unit.
"It's important for the board to accept results like this. Chopping and changing doesn't bring you success. The most important thing is to have some continuity."