The phrase "skills eroded" is correct and usable in written English.
It can be used to describe a decline or deterioration in someone's abilities or competencies over time.
Example: "Due to the lack of practice and training, her skills eroded significantly over the years."
Alternatives: "skills diminished" or "skills declined."
(You wonder when Holtz the historian thought Hitler's skills eroded).
His scoring skills eroded, but he was still considered a useful player.
He may someday be able to say: "Before my skills eroded, I was the best ever but I came back because I realized what a privilege basketball is.
Yes, there was the Oliver McCall incident in 1994 -- in which Lewis thought he was robbed on a fast count -- but Lewis, the two-time world champion from England, finally distinguished himself after Evander Holyfield aged, Mike Tyson's skills eroded and the heavyweight division became an assortment of Golotas, Akinwandes and Bothas.
New baseball arbitrator Fredric Horowitz will make that call, which will have an enormous impact on A-Rod's career - at age 38, with Rodriguez' skills eroded due to age and injury, every game counts, and so that is where the bulk of the fight lies.
That's especially worrisome because the longer unemployment persists, the more skills erode and the harder it becomes to find work.
And then there are all the closing costs, like destination and acquisition fees, purchase option fees and disposition fees, which eat into your pocketbook and (if you are proud of your negotiating skills) erode your self-esteem.
It said: Such long spells of unemployment and discouragement early on in a person's career also damage long-term prospects, as professional and social skills erode and valuable on-the-job experience is not built up.
He still holds out a faint hope that England Coach Fabio Capello will include him on his roster for Euro 2012, but even as he ages and his skills erode slowly, Beckham has drawn interest from European clubs, including Queens Park Rangers in England and Paris St. Germain.
"The European Union's precrisis growth performance was disappointing enough, but the performance has been even more dismal since the onset of the crisis," the European research group Bruegel concluded in a recent report, saying weak growth is undermining efforts to reduce debt and fueling bank fragility, all while skills erode for the unemployed.
About 41percentt of the unemployed have been out of work for more than 27 weeks, and economists have found that as workers remain jobless for extended periods of time, their skills erode, their work contacts move on, their motivation wanes and they have difficulty returning to the labor force when the economy picks back up.
