The Newcastle United legend feels that the Spaniard is a good appointment.
The 55-year-old Spaniard signed a three-year deal at St James's Park on Friday evening, hours after the club parted company with Steve McClaren.
With Benitez, the Magpies have hired a man with a Champions League title on his CV, along with two Europa League crowns - one when it was known as the UEFA Cup.
Benitez is comfortably the most decorated manager that Newcastle have appointed since Mike Ashley bought the club in 2007. He becomes the ninth boss in as many years.
But Shearer says that it might well click this time, noting that the former Liverpool manager's high-profile status means that he has signed on under a position of strength - quite the opposite of how his predecessors were recruited.
"What's different about this appointment is all the other managers who were appointed under Mike Ashley were appointed under a position of weakness," he told BBC.
"They have not been able to name their terms, have had to put up with a transfer system that hasn't benefited the club or themselves, whereas Rafa can come in and put down exactly what he wants. He's not a head coach - he's a manager."
Top of the agenda for the former Liverpool manager is steering Newcastle - who sit 19th in the Premier League table, one point shy of safety with a game in hand - away from the relegation zone.
His first game comes on Monday night for the visit to league leaders Leicester City.