Don't question Joel Campbell's talent when it comes to deciding if he'll make it at Arsenal—it's there; his pro career isn't going to end up like Luke Freeman.
When manager Pepe Mel starts a jet-lagged loanee for a La Liga team chasing UEFA Champions League qualification, that tells you the kid has world-class upside.
In a win over Real Zaragoza, goalkeeper Adrián threw the ball with velocity, Joel controlled it perfectly, shielded the ball from the opposing player, had the presence of mind to look up, spot Rubén Castro's run, and possessed the technique to loft a through-ball for the assist—Campbell did this in his own half.
Against Deportivo La Coruña, he received Beñat's pass, noticed Ayoze and Álex Bergantiños were backing off, so the Costa Rican unleashed a rocket past Daniel Aranzubia.
Joel also had several bright moments vs. Athletic Bilbao.
Then when you factor in his performances for Costa Rica's youth team, where FIFA's Technical Study Group mentioned him as an outstanding talent in the U-17 and U-20 World Cup, it reinforces how much talent he has.
In Bed With Maradona editor Dave Hartrick offered his take on Campbell's future with the Gunners:
I think there’s a good player in there but one who may need to be handled with kid gloves and loved to get the best from, needs to be at a club with the time to give him a bit of special treatment and longer term, that may not be Arsenal.
Like Walcott, Joel Campbell is a No. 9 masquerading as a winger, and he yearns for a free-roaming role—hence why Hartrick made the "kid gloves" reference and why Nicol was frustrated with the Costa Rican.
Arsène Wenger's decision to move Thierry Henry and Robin van Persie centrally, enabled both players to turn into world-class footballers.
Campbell could be the same.