Yes, the given sentence "Picked Pamela to be on his baseball team" is a run-on sentence. It lacks proper punctuation or a conjunction to separate the ideas. You can correct it by adding a coordinating conjunction or using appropriate punctuation. For example:
"He picked Pamela to be on his baseball team."
"He picked Pamela to be on his baseball team, and she gladly accepted."
"Picking Pamela to be on his baseball team was a decision he made."
