That is precisely, comparing the two as players.
No it isn't. It's comparing two similar transfers; one of the best players in a mid table team joining a much bigger team in a big money move. I could have easily used Ashley Young as the example or in a few years I'm sure Bony will be a prime example. The point is being cautious about big fish in small ponds adapting.
Fellaini has showed his best (which in fact was in about 7 or 8 games only), when playing off the front. Fellaini & McCarthy are not interchangeable. McCarthy is a genuine midfield player - Fellaini is not.
And yet we didn't buy Fellaini to play in that position. We bought him because his best position was apparently as a defensive midfielder. When he came he spoke about trying to emulate Roy Keane and our manager at the time spoke about being forced to play him further forward because circumstances demanded it. Whether you think Moyes was a complete idiot for thinking this is pretty immaterial.
Again I don't see a position where McCarthy would benefit us, apart from squad depth. He's worse than Carrick in his position; he's worse than Herrera in his position and he isn't a number 10 (but would be worse than Mata even if he was). If we were to spend £25+m I'd want a player to come in and instantly replace Carrick; McCarthy isn't that player and I don't believe has the ability to ever be that player.
McCarthy was a stand out player in a strong group, in 2014 at Everton. Sigurdsson is one of Swansea's best player's, in a well organised & coached side - the quality of individual players at the two clubs does not compare.
He was a stand out player in a season where the team was riding a wave of new manager syndrome; where loaned players in Lukaku & Barry were out to win a contract and where teams were still playing them as if they were Moyes' team and getting a shock.
If we are saying he was a key part of how great they were last season we have to concede he's a part of why they have been so shite this season.
McCarthy is the right age to come in, learn, improve & play, in midfield with Schneiderlin (we need both), when Carrick retires (or when he's injured). He would free up Herrera to move up where he can contribute more goals & is more athletic than Blind.
A midfield of Schneiderlin, McCarthy and Herrera would be very underwhelming in my opinion. In fact I'd say it would be a significant downgrade on what we currently potentially have in Carrick, Herrera & Mata. Our 3 year plan should be having a midfield three of Herrera, Mata and a truly top class defensive midfielder in the Matic mould, with the likes of Schneiderlin & Blind as squad options. Spending £50m on Schneiderlin & McCarthy would be a backwards step in my opinion.
If we are to upgrade on a theoretical three of Carrick v2, Herrera & Mata (with Schneiderlin/Blind filling in) it should only be if truly great players in the Pogba, Verratti, Koke, Vidal mould become available.
Tom has got nothing of the energy, power or passing for that matter, of McCarthy.
Again lets see next season. It's amazing how some players can look great when the pressure is off and expectations are average. Everything about Cleverley strikes me hugely as a big fish in a small pond character.
This Everton side, without the Europa League, finished sixth, in the most competitive league in the world, in 2014. You started with the comparisons which, are ludicrous, as the style of football throughout European top flight divisions, bears no resemblance, to the competitive nature of the Premiership.
And in 2015 he was a key component in a team that finished closer to Burnley than Liverpool. You can't take the glory of doing well without taking responsibility for doing poorly.