Is Okajima getting tired?

A question that will be on the mind of many of you today I imagine.
For those of you who don't know, we have a Japanese reliever and starter on the team (Boston Red Sox- though if you didn't know that then you're no friend of mine) this year and both of them are starting to look as though they are running out of steam. Okajima has been performing amazingly so far this year and he is easily one of my favourite players but he does look a little tired on the mound and he's starting to give up runs (hah! if he was anyone else we'd over the moon with his era as it is at the mo). We need to be consolidating our position at this time of year to ensure that we make it to the playoffs, win the pennant and spank the yankees. But we don't want to be doing it at the cost of some of our best players who we will certainly be needing for the post season World Series section. Hmm, a tough balance to find I feel. What would certainly help is if we gave them both a little more run support. Not that we didn't try last night (Varitek was looking great- and he played some good ball) but overall our numbers have been down. Heaven forbid that we actually have to create some runs and drive people round the bases instead of trying to thump stuff over the wall for once. Not that I'd mind if we did get a bunch of home runs, its just that its not something we should be relying on.
Hopefully the fresh blood that we have just bought up to pad the roster out will be just what we need. We've already seen some good plays from them though they still have the 'fresh fish' look whilst they are running around on the field. With any luck they will have settled in and still be on a high streak when we get to the end of the season. If they can just hold off on their major league slump (something that all the newbies seem to go through at some point whilst they readjust to the new settings) until next year.... this will of course mean they are worth more to trade as well should we so desire :)