Writer Andrew Guerdat and his subject, the late baseball broadcaster Red Barber, couldn't ask for a better interpreter than David Garrison, who stars in Red Remembers, the rather undramatic new solo show at the Berkshire Theater Festival, directed by John Rando. Only 57 years old himself, Garrison convincingly plays a man who is a quarter-century older, walking and gesturing with the pained circumscription of advanced age and getting annoyed with himself when he loses his train of thought.

But Garrison's strong efforts aside, the first-time playwright hasn't figured out how best to package the highlights of a biography so as to craft a compelling narrative. Instead, Guerdat opts to present [...]