Everton have just received new investment and are expected to spend big in the summer.
Farhad Moshiri has bought just under 50% of the club, and he is expected to invest huge sums into the club.
And Martinez’s side are also expected to bring in some high-profile players, as they look to gatecrash the top four.
Everton fans are, understandably, optimistic for the future - but Merson believes that the club face a new challenge now.
"Hopefully it’ll be a big deal. But if you get the money, you have to get the players there," the former Arsenal midfielder said.
"Everyone gives good wages now. But if you’re going for a top draw players they are going to want to play in the Champions League.
"For me, it’s great. Because I’ve always said ‘how has nobody every bought Everton?’"
Everton are unlikely to be able to make it into the European places this season, as they have fallen short of expectations.
The Toffees are currently in 11th place in the Premier League table, and they are eight points back from the top six.
Everton have scored frequently, but their troubles at the back have plagued their season and they now look set to finish in a mid table spot.