The Toffees strengthened in the summer, and again in the winter, following the arrival of new manager Roberto Martinez and the bolstering of personnel has seen the Goodison Park outfit move up to sixth place.
Everton are currently ahead of reigning champions Manchester United and within nine points of the top four but a Champions League place looks unlikely, prompting Baines to suggest there needs to be more additions on the blue side of the River Mersey this summer.
"I think the manager came in straight away with a lot of ambition and he talks about his hopes of taking the club that one step further from where they've been," the England international told Sky Sports.
"We'd always been seen to have done well but never quite managed to achieve the things we wanted and he wants to take us to the next level, but in order to do that we have to change our style a bit.
"What we are doing now is slightly in transition but it's a system that if we keep improving and get better at we'll definitely climb up the table.
"I'm sure the manager will be looking to keep investing and keep improving the squad because every year that's what everyone else does and I think to give him a chance to improve us to that level then he's going to need money to invest.
"We're working on what we've got here and what we've got at the moment I think the big teams have a lot of money to spend and they spend it every year and they improve every year so we'll have to do the same."
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