The Sky Sports pundit was analysing the 21-year-old's performance against Swansea City on Sunday afternoon.
The highly rated young defender played an awful backpass to Tim Howard in the first half against the Swans, which ultimately led to Everton conceding a penalty.
And Carragher is wondering whether Roberto Martinez is responsible for that kind of cheap mistake...
Carragher said at half-time of the Everton - Swansea match: "He’s got the cut that out. But is he getting that from the manager? Just pass it, don’t be too cocky and try and take someone on. It’s not playing good football from the back, it’s being too cocky."
Questioning Martinez is very important right now. The Spaniard seems to think he has the aura of an Arsene Wenger or Sir Alex Ferguson - that no level of failure will justify a change in approach.
But the tide is turning quickly at Goodison Park. Everton fans are growing more and more frustrated with Martinez.
After several years in football management, the Toffees head coach simply cannot coach a team to defend. In that area, he is even worse than Brendan Rodgers.
Martinez has lost a lot of the respect his work at Wigan built up and, with Everton just eight points off relegation, the Spaniard needs to act fast - and sensibly.