Narrative:

A B737-700 was handed to me from 28 on the wrong arrival; since we had just changed arrivals...again. When he checked in I gave him the a new clearance like: B737-700 cleared to den via after clapton join the jagger3 arrival; descend via the jagger3 arrival; den altimeter is .... I believe he read back something like : ok back on the jagger arrival we'll descend via the jagger arrival. Followed by the comment that this was their 4th! Arrival change in the last 10 minutes!I noticed a little later that he was to high and to close to the gate and asked if they were descending via and would make the restriction. Their read back was almost of confusion and uncertainty; of which I took as a no/not sure. I called approach saying he was high and was told that there was nothing that they could do with him; so I descended him to an altitude and gave him a left heading. After looking/talking to the sector above me; whose airspace he was in; I found a hole to put the aircraft back into. So after a couple of headings and descents; I had alerted him that I was going to change his arrival again and put him in a different stream; he fit in that hole with no issue and went in without further issue.we were also metering during all of this also.this new RNAV arrival is a mess; as I know there is already paperwork about. Along with den approach changing the configuration every 5 minutes is ridiculous. I'm sure that there is more of this type of thing happening than I know of.

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Original NASA ASRS Text

Title: ZDV Controller described a missed crossing restriction by a DEN arrival; the flight crew commenting about a number of STAR changes by ATC.

Narrative: A B737-700 was handed to me from 28 on the wrong arrival; since we had just changed arrivals...again. When he checked in I gave him the a new clearance like: B737-700 cleared to den via after clapton join the jagger3 arrival; descend via the jagger3 arrival; den altimeter is .... I believe he read back something like : ok back on the jagger arrival we'll descend via the jagger arrival. Followed by the comment that this was their 4th! arrival change in the last 10 minutes!I noticed a little later that he was to high and to close to the gate and asked if they were descending via and would make the restriction. Their read back was almost of confusion and uncertainty; of which I took as a no/not sure. I called approach saying he was high and was told that there was nothing that they could do with him; so I descended him to an altitude and gave him a left heading. After looking/talking to the sector above me; whose airspace he was in; I found a hole to put the aircraft back into. So after a couple of headings and descents; I had alerted him that I was going to change his arrival again and put him in a different stream; he fit in that hole with no issue and went in without further issue.We were also metering during all of this also.This new RNAV arrival is a mess; as I know there is already paperwork about. Along with DEN approach changing the configuration every 5 minutes is ridiculous. I'm sure that there is more of this type of thing happening than I know of.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.