Phil Parkinson has been warned of pressure in the Wrexham hot seat after they were thumped 6-0 by West Ham United.Jarrod Bowen, Joel Piroe, Konstantinos Mavropanos, Taty Castellanos, Mohamadou Kante and Manor Solomon netted as the Hammers were a class above their visitors.Parkinson watched his Wrexham side ship six goals at West HamGettyWest Ham, who are favourites for promotion back to the Premier League, had six different goalscorers in a league match for the first time in their 131-year history.It broke their previous record of five, and the convincing victory was also their biggest in 28 years.Head coach Nuno Espirito Santo has sent them to the Championship summit, whilst his counterpart Parkinson looks up in 16th.The 58-year-old is in his sixth season as Wrexham boss and has played a big role in their meteoric rise from the National League.However, according to Scott Minto, the alarm bells may be beginning to ring after a shocking performance, which was described as woeful by talkSPORT commentator Joe Shennan.‘It’s very, very bad’“Of course there’ll be pressure,” Minto said on commentary, with the 6-0 loss being the heaviest under the Ryan Reynolds and Rob McElhenney ownership. “There’s very, very ambitious owners.“But you have to think about what he’s done and he’s earned the right to right this wrong… but this is a really poor run. “And there are question marks against him maybe with signings, certainly with substitutions, or lack of, tonight.”However, Minto stressed that Wrexham must keep Parkinson’s success at the club in mind, despite their recent poor run of form.“But let’s not forget where he’s brought this club from and where it is right now,” he continued.Wrexham have suffered the biggest defeat since their Hollywood takeover in 2021Getty“The Championship is a long, long season. It’s one win in the season in the league.“But he knows that’s not good enough… it’s poor, it’s not good, it’s very, very bad.”Parkinson reflects on West Ham defeatSpeaking to talkSPORT after full-time, Parkinson examined what went wrong with Wrexham’s performance at West Ham.“First of all, as a manager, you’ve got to analyse it yourself,” he began. “They’re a good side, we know that. “The first 25 minutes we were okay in the game and then we conceded two goals, which were moments in and around the box we had to do better.“We gave a team that were already full of confidence another lift…the next goal kills the game and it was a tough, tough night. West Ham have risen to the top of the Championship with their huge winGetty“Against quality opposition we didn’t do enough when it was needed tonight.”Parkinson also spoke on his substitutions, having brought on two defenders and just one attacker in the 67th minute when 4-0 down.“Could I have changed more? I will look at myself, the selection and everything about it.”Wrexham have drawn four of their seven league matches this season, including the stalemate at Welsh rivals Swansea City last weekend.Southampton are their last opponents ahead of the international break, and Minto revealed just how important it is that they win.“If they lose that and lose it heavily, that’s going to be three long weeks before the international break finishes.”