This is a hypothetical. First of all, if Kirilloff were recalled for a Cave injury, it would infer that he is hitting very, very well, given that he'd get the call over Wade, Astudillo, Rooker and Larnach. Wade and Astudillo have big league experience and both Larnach and Rooker are older (Rooker by two years). It would also necessitate a 40-man roster move. I would think that Kirilloff would and should get at least four starts a week. That could be done by resting all the outfielders and occasionally Sanó/Cruz. It wouldn't make sense to sit a Top 50 prospect on the bench using service time. We really don't know if there will be a platoon or other advantage (for example AK might feast on fastballs) but if Kirilloff were recalled, he really would need to be in the lineup more often than not. All players are not created equal. It is the job of field staff and front office to weigh the various factors, including potential when making roster and playing time decisions. 40-man status, service time, contract, options all fit in somewhere and it complicates decisions for promotion and demotion. Getting back to Kirilloff, if the club decides to promote him early and start his service time clock, they definitely need to have him on the field a lot, if not every day.