I think hindsight is 20/20 and there is alot of revisionist history going on. Ronaldo was hardly a world beater between the ages of 18-21. In fact, we copped alot of shite from opposing fans who called him a one trick pony with no end product. Jose antonio reyes and arjen robben were considered far better players at the same stage in their careers. Fast forward to 2020 and we're now talking about one of the best players of all time.
Whilst it would be unrealistic to compare James with Ronaldo, I believe Fletcher would be a prime example of a "late bloomer". I'm not sure if you were around at that time to watch him, but for the first 3-4 years when he broke into the team, he was absolutely slaughtered for his performances. Some of them were pretty bad. There was a running joke that he was Fergie's son, hence why he was still in and around the team. This was when EVERY year we would cry for the club to sign a world class central midfielder, which would almost never happen. Have a look at this thread:
https://www.redcafe.net/threads/fergies-son-the-darren-fletcher-divide.264692/
It wasn't until Fletch turned 26-27 years of age before things started clicking. At one point he became our best midfielder and absolutely bossed the show in high stakes champions league match against the gooners. Sadly, a debilitating illness cut short his career right when it was hitting its prime.
I'm not saying Dan James is going to reach those heights. Nobody knows that. I'm saying people in this generation seem to be even MORE in a rush to toss aside our young players the minute they don't perform up to unrealistic standards. Lets get behind our players and not discard them due to a few bad matches in their debut season.
I would also like to add that "an average winger that is hard working" is actually how most described Park Ji Sung when he first came to the club. Another player who was roundly criticised for not producing enough, but eventually through hard work and match time, was made indispensible to the TEAM because he played a role where his workrate and effort molded perfectly with Ronaldo and Rooney. So I see that in Dan James. Someone who will inevitably grow and improve and play an important part in our team winning trophies.
Call me an optimist.