"I don't think it's going to be on the long end," Harbaugh said. "But that's something we're going to get cleaned up. It came up last week and came up in the game obviously."
Monroe signed a five-year, $37.5 million contract, which included $19 million guaranteed, this offseason. He had made 14 straight starts for the Ravens.
"It's definitely going to be different for us as an offense," quarterback Joe Flacco said. "But it's honestly something I try not to pay too much attention to. I think Hurst is going to come in and do a great job."
Hurst was a four-year starter at North Carolina, but he went undrafted after breaking his left leg in a bowl game in late December. He understands the challenge of making his first NFL start.
"I think if you're not nervous, you don't know what's happening. It is a big situation," Hurst said. "I'm excited about it. It's just a matter of going out there knowing you prepared and you've done everything you can for that opportunity."