Sigh... Triano IS a big part of the problem- just look at the team's defensive rating over the last few seasons with him at the helm.
However, this only makes sense. There's not a big reason to sign a big named coach (at big money) right now, with: the uncertainty of the new CBA, the uncertainty of the MLSE sale, and the fact that there may be a shorter season (if any) next year. You don't want to bring in a new coach, with new philosophies, etc. in a shortened season. If the Raps do horribly next year, retaining Triano means there's a fall guy. If you eventually want to bring in a better coach, you have to put him in the right position to succeed, and doing this now wouldn't be the best predicament for a new coach.
I personally would like to see a new and better coach, however, this move only makes sense...for now.