Newcastle United signed four players in the January transfer window.
Merson said: “They've had a right go in the transfer market and it was 100 per cent the right thing to do. I like what they've bought; Andros Townsend and Jonjo Shelvey have played in the Premier League, they've played international football, they always want to get on the ball and I really like that. I'd be shocked if Newcastle went down now.”
Merson has praised the club for the work they have done in the market, giving them an A+ rating for the signings they made.
Jonjo Shelvey and Andros Townsend arrived from rival Premier League sides, bringing top flight experience and homegrown status to the club.
Henri Saviet linked up with the Magpies from Bordeaux to bring some steel to the midfield, and Seydou Doumbia was a deadline day loan arrival from Roma.
Steve McCLaren has addressed the lack of goals in the Newcastle team, and Merson believes that the Tyneside club will face no trouble in surviving in the top flight.
However, for all the attacking players brought in, McClaren failed to sign a single defender in January.
A new left-back was a target for the head coach, but he should have also been looking at another centre-back, and Newcastle ended the window needing to rely on the same shaky defence that has served them this season.
Newcastle may now score more goals than they were before January, but they are surely going to be conceding the exact same amount, making survival not such a sure bet.