West Bromwich Albion are a club in cruise control at the moment, with Carlos Corberan their man to thank.

Having taken over from the miserable tenure of Steve Bruce, in which he threatened to drag them into a relegation battle, the Spaniard has now renewed hopes of a Premier League return.

Within the Hawthorns there is little to be unhappy about. They are revitalised, and despite murmurs regarding Corberan's future, they have little cause for unrest.

That is, apart from the continued underperformance of Grady Diangana, who is one of few yet to be reignited under the new regime.

The 24-year-old first joined the Midlands outfit on an initial loan deal, where his sparkling performances made him a must-buy. He scored eight times and assisted a further seven as they earned promotion from the Championship, and spurred the Baggies to unload £18m to secure his signing from West Ham United.

What made him even more impressive is that he was noted as "struggling" in one match by journalist Joe Chapman back in 2019, in the midst of his fruitful campaign. With how he has gone on to play, it goes far beyond the 'struggles' of four years ago.

There was unrest amongst many at the Hammers for sanctioning such a departure, with Mark Noble even tweeting: "As captain of this football club I’m gutted, angry and sad that Grady has left, great kid with a great future!!!!!"

He was clearly highly thought of, but since that year he has never really recaptured any semblance of the form that caused such furore at his sale.

Just one league goal the season following saw them earn instant relegation from the top flight, and he is since yet to surpass four league goals in the other two campaigns in the Championship too.

As such, his valuation has deservedly plummeted, leaving West Brom rethinking their decision to spend a club-record fee on the toothless winger.

West Brom MM graphic of Grady Diangana

Transfermarkt have mapped this drop in rating, which has steadied at an abysmal €6m (£5.3m) as of October 2022. This marks a sharp 70% downturn across just two years since his big-money move.

Given his youth, there is still plenty of time to turn this around and make his price tag worthwhile, and Corberan is capable of such a feat.

His winning goal at the weekend over Coventry City could prove a turning point, as he notched what was just his second goal in 16 league appearances.

Diangana is in desperate need of a confidence boost to help him recapture the swagger that spurred on his top performances. There will be hope that he can now kick on and help add to an already exciting season for West Brom.