Christian also proposed Alejandro Cota on the guitar defining a new lining in the band: Claudio O'Connor, voice; Hernán García, bass; Alejandro Cota, guitar; Christian Vai, drums In the beginning of 2000 O'Connor signed with their current manager Andrés Vignolo.

Both this material and "Hay un lugar" was a take off from earlier works, not in differences in the music strength but ideologies, sectarian thematics, the intolerance to other bands and styles.

"Yerba Mala Nunca Muere" was officially presented at "Cemento" on April 13, 2000 at full capacity.

In 2004, after concluding their tour on the Argentine coastline including their presentation with Iron Maiden at Velez Sarsfield stadium, O'Connor recorded its fourth study work titled "El tiempo es tan pequeño" at "Panda studios".

Released August 24, 2006, the first cut was "Rock del suicida" and was on rotation on radios and music TV channels.