Julio Enciso and Kaoru Mitoma both played for the final 20 minutes at Reading on Saturday.
They’ll likely enjoy more playing time when Albion take on Brentford behind closed doors tonight.
March said: “They were sharp. They are both very quick and sharp on the ball.
“They can get into dangerous positions and affect the goal.
“I think they will of course make a difference.
“Next season it’s five substitutions, so everyone gets more playing time and more opportunities. Hopefully they can take it.”
March said communication with the national teams of Japan and Paraguay was not a problem.
He added: “There is a different language in football.
“Mitoma might speak a little more English, but Julio is a fast learner.
“That’s all they can do, I think.”
https://www.theargus.co.uk/sport/20531848.solly-march-impressed-julio-enciso-kaoru-mitoma/?ref=rss Solly March impressed by Julio Enciso and Kaoru Mitoma