I want to start at ICU but the hospital only has PCU positions available. Should I wait until another cohort starts?

[A980]

I'm a May graduate, however, I applied to their fall cohort that starts in November because I missed the deadline for the Summer cohort. I just heard back from the recruiter that there are some available units that haven't been filled yet, so if I want I can interview with them and I can start in July (as a Summer cohort) instead of November. This is great, but the unit that I really wanted to work at was ICU and right now they only have PCU positions left. I heard this hospital is top-rated, being one of the largest hospitals in the nation, so I'm scared if I miss this opportunity I won't get another better chance. I don't know how the residency program works but what I thought is that there is no guarantee there will be ICU positions open for the fall. Should I still accept the interview request and start at PCU?  Is this a question for the recruiter? I don't want to look greedy but I really do want to start off with the unit that I've dreamed if I could. The recruiter did mention that if I wish to start in November I can. Just a hard decision for me:( Thank you in advance!!